# Opinion polling for the 1986 Spanish general election

In the run up to the 1986 Spanish general election, various organisations carried out opinion polling to gauge voting intention in Spain during the term of the 2nd Cortes Generales. Results of such polls are displayed in this article. The date range for these opinion polls is from the previous general election, held on 28 October 1982, to the day the next election was held, on 22 June 1986.
Voting intention estimates refer mainly to a hypothetical Congress of Deputies election. Polls are listed in reverse chronological order, showing the most recent first and using the dates when the survey fieldwork was done, as opposed to the date of publication. Where the fieldwork dates are unknown, the date of publication is given instead. The highest percentage figure in each polling survey is displayed with its background shaded in the leading party's colour. If a tie ensues, this is applied to the figures with the highest percentages. The "Lead" columns on the right shows the percentage-point difference between the parties with the highest percentages in a poll.

## Electoral polling
### Nationwide polling
#### Voting intention estimates

The table below lists nationwide voting intention estimates. Refusals are generally excluded from the party vote percentages, while question wording and the treatment of "don't know" responses and those not intending to vote may vary between polling organisations. When available, seat projections determined by the polling organisations are displayed below (or in place of) the percentages in a smaller font; 176 seats were required for an absolute majority in the Congress of Deputies.

##### Color key

Exit poll
| Polling firm/Commissioner | Fieldwork date | Sample size | Turnout | | | | | | | PNV | | | | | | CG | | | Lead |
| 1986 general election | 22 Jun 1986 | — | 70.5 | 44.1 184 | 26.0 105 | – | | 5.0 18 | 9.2 19 | 1.5 6 | 1.1 5 | 0.4 0 | 0.5 2 | 0.5 0 | 1.0 0 | 0.4 1 | 1.1 0 | 4.6 7 | 18.1 |
| COPE | 22 Jun 1986 | ? | ? | ? 170/180 | ? 100/110 | – | | ? 15/20 | ? 15/20 | ? 7/9 | ? 6/9 | ? 6/9 | ? 6/9 | – | ? 0/2 | | ? 1 | ? 10/16 | ? |
| Cadena SER | 22 Jun 1986 | ? | ? | ? 187/193 | ? 91/96 | – | | ? 17/19 | ? 17/19 | ? 7/8 | ? 5/6 | ? 1 | ? 2 | – | ? 0 | | ? 1/2 | ? 8/10 | ? |
| Sofemasa/TV3 | 22 Jun 1986 | 30,000 | ? | ? 184/196 | ? 85/91 | – | | ? 17/18 | ? 18/24 | ? 6/7 | ? 7/8 | ? 1 | ? 4/5 | – | ? 0/2 | ? 1/2 | ? 1 | ? 12/13 | ? |
| RTVE | 22 Jun 1986 | 300,000 | 68 | ? 189 | ? 86 | – | | ? 17 | ? 12 | ? 8 | ? 7 | ? 1 | ? 2 | – | – | ? 1 | ? 1 | ? 12 | ? |
| ECO/Cadena SER | 16 Jun 1986 | ? | ? | 40.2 | 25.5 | – | | – | 9.9 | – | – | – | – | – | 4.0 | – | 1.3 | 5.7 | 14.7 |
| Telemarket/PRD | 14 Jun 1986 | 10,105 | ? | 39.1 174 | 22.2 93 | – | | 5.2 18 | 5.4 9 | 2.5 10 | 0.8 3 | 0.5 1 | 0.5 2 | ? 1 | 9.7 24 | | ? 1 | 5.0 11 | 16.9 |
| OTR–Press | 14 Jun 1986 | 2,497 | ? | 45.0– 47.0 | 18.0– 21.0 | – | | | 11.0– 14.0 | 1.0– 2.0 | – | – | – | – | 9.0– 11.0 | – | – | 6.0– 9.0 | 26.0– 27.0 |
| Aresco/ABC | 11–13 Jun 1986 | 2,505 | 71.1 | 39.9 167/180 | 28.7 105/121 | – | | 4.5 17/20 | 9.0 13/19 | 1.8 8/10 | 1.0 3 | 0.3 0 | 0.4 1 | – | 3.2 3/6 | – | 1.3 0 | 7.4 6/12 | 11.2 |
| Emopública/Grupo 16 | 5–11 Jun 1986 | 6,081 | 71.9 | 45.5 193/202 | 23.0 83/90 | – | | | 10.8 26/32 | 1.7 6/7 | 1.3 4/5 | 1.2 1/2 | 1.0 2 | – | 6.2 14/16 | | 1.2 0 | 5.2 7/8 | 22.5 |
| ECO/Cadena SER | 10 Jun 1986 | 1,326 | ? | 40.2 | 26.3 | – | | 4.8 | 9.6 | 1.8 | 1.1 | – | 0.6 | – | 3.7 | – | 1.3 | 6.0 | 13.9 |
| Perfiles | 9–10 Jun 1986 | ? | ? | 39.4 | 19.3 | – | | 5.3 | 2.9 | 2.3 | – | – | – | – | 12.4 | – | – | 7.0 | 20.1 |
| Gallup/Ya | 2–9 Jun 1986 | 6,046 | ? | 40.0 167 | 24.0 101 | – | | 6.0 20 | 9.0 23 | 2.0 9 | 1.0 5 | 1.0 1 | 1.0 2 | – | 4.0 6 | 1.0 2 | 2.0 0 | 6.0 9 | 16.0 |
| Demoscopia/El País | 5–8 Jun 1986 | 5,200 | 70 | 41.0 167/194 | 24.0 86/105 | – | | 6.0 17/20 | 11.0 15/29 | 3.0 8/9 | 1.4 3/4 | 1.0 1 | 0.7 1/2 | 0.4 0 | 3.0 3/4 | | 0.3 0 | 6.0 10/16 | 17.0 |
| Iope–Etmar/El Periódico | 3–7 Jun 1986 | 7,209 | 72–76 | 42.4 180 | 24.1 98 | – | | 4.7 17 | 11.7 30 | 1.7 7 | 1.1 4 | 0.6 1 | 0.5 1 | – | 2.8 4 | | 2.0 1 | 4.9 5 | 18.3 |
| Line Staff/La Vanguardia | 29 May–7 Jun 1986 | 8,871 | 74.3– 77.8 | 39.3– 45.0 178/199 | 19.2– 23.7 71/90 | – | | 5.4– 5.7 20/21 | 11.1– 14.0 17/28 | 1.8– 1.9 9/11 | ? 1/2 | ? 1 | ? 1/2 | – | 8.0– 9.2 8/12 | 0.9– 1.0 2/4 | – | 5.5– 7.6 7/12 | 15.6– 25.8 |
| Perfiles | 2–3 Jun 1986 | 4,480 | ? | 40.3 | 19.7 | – | | 4.9 | 2.5 | 2.2 | 0.8 | 0.4 | 0.6 | – | 12.9 | – | – | 6.0 | 20.6 |
| ECO/Cadena SER | 2–3 Jun 1986 | 1,311 | 73 | 40.3 | 26.5 | – | | 5.4 | 8.4 | 1.8 | 1.2 | – | 0.5 | – | 3.6 | – | 1.0 | 5.9 | 13.8 |
| TC–Sigma Dos/Actualidad | 30 May–2 Jun 1986 | 1,111 | ? | 38.5 170 | 26.5 114 | – | | 4.9 19 | 8.7 13 | 1.9 8 | 1.0 2 | – | 0.4 ? | – | 4.7 7 | – | 2.8 0 | 6.6 12 | 12.0 |
| Perfiles | 26–27 May 1986 | 4,265 | ? | 40.2 | 23.1 | – | | 4.6 | 2.8 | 2.0 | 0.5 | 0.4 | 0.3 | – | 12.8 | – | – | 5.3 | 17.1 |
| Demoscopia/El País | 24–27 May 1986 | 5,200 | 72 | 46.0 194/210 | 25.0 85/98 | – | | 6.0 16/17 | 8.0 15/19 | 3.0 8 | 1.0 2/3 | 0.3 0 | 0.7 1/2 | – | 1.0 1/2 | | – | 6.0 6/7 | 21.0 |
| CIS | 21–25 May 1986 | 5,615 | ? | 46.5 | 25.5 | – | – | – | 6.0 | – | – | – | – | – | – | – | – | 4.4 | 21.0 |
| Perfiles | 19–20 May 1986 | 4,330 | 73.6 | 42.0 | 23.4 | – | | 3.9 | 3.5 | 1.9 | 0.6 | 0.4 | 0.3 | – | 11.4 | – | – | 4.1 | 18.6 |
| ECO/Cadena SER | 19 May 1986 | ? | ? | 42.0 | 29.1 | – | | 5.2 | 5.3 | 1.9 | 0.9 | – | 0.6 | – | 3.4 | – | – | 6.7 | 12.9 |
| Typol/CP | 16–18 May 1986 | 5,000 | ? | ? 160 | ? 120/130 | – | | – | 5.0 6 | – | – | – | – | – | 5.8 7/8 | – | – | – | ? |
| Sigma Dos/Actualidad | 10–14 May 1986 | 1,111 | ? | 38.4 | 25.8 | – | | 4.5 | 7.2 | 1.9 | 1.0 | – | 0.4 | – | 4.9 | – | – | 8.4 | 12.6 |
| Typol | 24 Apr–10 May 1986 | 5,000 | ? | 43.5 | 28.6 | – | | | 5.8 | 2.1 | 0.9 | 0.4 | 0.9 | – | 9.7 | – | – | 3.9 | 14.9 |
| Emopública/Cambio 16 | 23–25 Apr 1986 | 1,200 | ? | 44.3 | 27.7 | – | 7.4 | 3.8 | 6.5 | 0.8 | 0.9 | – | 1.0 | – | 6.0 | – | – | – | 16.6 |
| Emopública/Cambio 16 | 4 Mar 1986 | 1,300 | ? | 40.7 | 29.7 | – | – | – | – | – | – | – | – | – | – | – | – | – | 11.0 |
| Emopública/Cambio 16 | 13 Jan 1986 | ? | ? | 43.0 | 27.1 | – | – | – | – | – | – | – | – | – | – | – | – | – | 15.9 |
| Sofemasa/La Vanguardia | 16 Nov–1 Dec 1985 | 1,849 | ? | 50.5 | 19.8 | – | 7.4 | 3.8 | 4.0 | 2.3 | – | – | – | 0.8 | 1.5 | – | – | – | 30.7 |
| AP | 14 Nov 1985 | 6,500 | ? | 40.0 | 32.5 | – | 4.0– 5.0 | 3.0 | 6.0– 7.0 | 2.0 | – | – | – | – | 1.0– 2.0 | – | – | – | 7.5 |
| Iope–Etmar/Mediterráneo | 5–23 Jul 1985 | 1,600 | ? | 44.9 | 24.6 | – | 5.0 | 3.9 | 9.2 | 1.8 | – | – | – | 0.7 | 2.7 | 1.6 | – | – | 20.3 |
| Sofemasa/CEOE | 24 Jun–7 Jul 1985 | 23,000 | ? | 46.0 | 28.0 | – | – | – | 5.6 | – | – | – | – | – | <1.0 | – | – | – | 18.0 |
| Typol/AP | 26 Jun 1985 | 2,580 | ? | 41.4 | 31.7 | – | 4.4 | 3.1 | 6.1 | 2.2 | – | – | – | – | 4.5 | – | – | – | 9.7 |
| Sigma Dos/Actualidad | 4–11 Jun 1985 | 1,111 | ? | 35.4 | 27.0 | – | 5.9 | 3.0 | 5.2 | 2.1 | 0.9 | – | 0.6 | – | 0.8 | – | – | – | 8.4 |
| Sigma Dos/Actualidad | 7–14 May 1985 | ? | ? | 33.7 | 25.9 | – | 6.1 | 2.9 | 5.1 | 1.9 | 1.0 | – | 0.5 | – | 1.3 | – | – | – | 7.8 |
| Iope–Etmar/Mediterráneo | 1 Mar–23 Apr 1985 | 1,800 | ? | 47.4 | 25.2 | – | 4.1 | 4.6 | 7.5 | 1.8 | – | – | – | 1.2 | 1.8 | 0.2 | – | – | 22.2 |
| ABC | 10 Mar 1985 | 15,000 | ? | ? 167 | ? 118 | – | ? 13 | ? 17 | ? 5 | ? 8 | – | – | – | – | ? 19 | – | – | – | ? |
| Iope–Etmar/Mediterráneo | 15 Jan–6 Feb 1985 | 1,800 | ? | 47.8 | 22.3 | – | 4.0 | 4.5 | 8.0 | 1.9 | – | – | – | 0.8 | 4.3 | 0.3 | – | – | 25.5 |
| Iope–Etmar/Mediterráneo | 14 Dec–20 Jan 1985 | 1,800 | ? | 45.9 | 23.6 | – | 4.7 | 4.3 | 7.2 | 2.1 | – | – | – | 1.5 | 4.5 | 0.3 | – | – | 22.3 |
| ECO/Cambio 16 | 11–14 Jan 1985 | 1,307 | ? | 45.0 | 28.5 | – | 5.0 | 4.0 | 5.0 | 2.0 | – | – | – | – | 2.0 | – | – | – | 16.5 |
| Gallup | 11–30 Nov 1984 | 1,035 | ? | 38.2 | 26.3 | – | 5.8 | 3.9 | 6.3 | 2.0 | 1.0 | 0.7 | 0.5 | – | 8.3 | – | – | – | 11.9 |
| AP | 31 Oct 1984 | 1,037 | ? | 39.9 | 31.5 | – | 6.9 | – | 2.5 | – | – | – | – | – | – | – | – | – | 8.4 |
| TC/Actualidad | 22–28 Oct 1984 | 1,111 | ? | 39.2 172 | 29.4 132 | – | 7.2 14 | 4.0 16 | 4.0 4 | 1.9 8 | ? 2 | ? 1 | – | ? 1 | – | – | – | – | 9.8 |
| Gallup | 22 Sep–9 Oct 1984 | 1,024 | ? | 42.9 | 28.0 | – | 5.9 | 3.1 | 5.7 | 2.3 | 0.9 | 0.7 | 0.6 | – | 5.2 | – | – | – | 14.9 |
| Iope–Etmar/Mediterráneo | 14 Sep–8 Oct 1984 | 1,852 | ? | 44.8 | 24.4 | – | 5.0 | 5.0 | 7.7 | 1.8 | – | – | – | 0.9 | 2.9 | 0.6 | – | – | 20.4 |
| TC/Actualidad | 17–23 Sep 1984 | ? | ? | 37.1 | 28.2 | – | 5.6 | 3.0 | 3.6 | 1.9 | 0.8 | – | 0.6 | – | – | – | – | – | 8.9 |
| TC/Actualidad | 30 Jul–5 Aug 1984 | 1,111 | ? | 40.6 | 30.4 | – | 6.5 | 3.1 | 3.5 | 2.0 | 0.7 | – | 0.5 | – | – | – | – | – | 10.2 |
| ECO/Cambio 16 | 28 Jul 1984 | ? | ? | 41.1 | 31.6 | – | – | – | – | – | – | – | – | – | – | – | – | – | 9.5 |
| TC/Actualidad | 9–15 Jul 1984 | ? | ? | 44.3 | 27.4 | – | 4.9 | 3.1 | 2.4 | 2.0 | 1.0 | – | 0.6 | – | – | – | – | – | 16.9 |
| TC/Actualidad | 18–24 Jun 1984 | ? | ? | 42.0 | 29.4 | – | 5.4 | 3.0 | 3.5 | 2.0 | 0.8 | – | 0.6 | – | – | – | – | – | 12.6 |
| Gallup | 12–24 Mar 1984 | 1,031 | ? | 42.3 | 27.1 | – | 6.1 | 3.7 | 5.3 | 1.9 | 1.0 | 1.0 | 0.6 | – | – | – | – | – | 15.2 |
| Iope–Etmar/Mediterráneo | 2–27 Nov 1983 | 2,200 | ? | 47.5 | 26.9 | – | 4.4 | 4.3 | 4.6 | 1.9 | – | – | – | 0.5 | 3.1 | – | – | – | 20.6 |
| 1983 local elections | 8 May 1983 | — | 66.9 | 43.0 | 26.4 | – | 8.2 | 4.2 | 1.8 | 2.2 | 0.9 | 0.5 | 0.4 | 0.6 | 0.8 | – | – | – | 21.7 |
| Aresco/ABC | 26–29 Apr 1983 | 1,440 | 69.1 | 45.3 | 30.2 | – | 5.3 | 3.8 | 1.6 | 2.4 | – | – | – | – | 0.7 | – | – | – | 15.1 |
| Metra Seis/Tiempo | 11–15 Apr 1983 | 1,111 | ? | 49.9 | 17.6 | – | 4.2 | – | 1.3 | – | – | – | – | – | – | – | – | – | 32.3 |
| Alef/Grupo 16 | 21–26 Feb 1983 | 1,700 | ? | 49.7 | 17.9 | – | 3.3 | 2.9 | 1.3 | 1.2 | 0.8 | 0.7 | 0.6 | – | – | – | – | – | 31.8 |
| Metra Seis/Agencia Lid | 22–24 Feb 1983 | 1,002 | ? | 50.6 | 15.7 | 2.2 | 3.3 | 2.0 | 0.5 | 1.2 | 0.6 | – | 0.5 | – | – | – | – | – | 34.9 |
| 1982 general election | 28 Oct 1982 | — | 80.0 | 48.1 202 | 26.4 107 | 6.8 11 | 4.1 4 | 3.7 12 | 2.9 2 | 1.9 8 | 1.0 2 | 0.7 1 | 0.5 1 | 0.4 0 | – | – | – | – | 16.6 |

#### Voting preferences

The table below lists raw, unweighted voting preferences.

##### Color key

Poll conducted after legal ban on opinion polls
| Polling firm/Commissioner | Fieldwork date | Sample size | | | | | | | PNV | | | | | ? | N | Lead |
| 1986 general election | 22 Jun 1986 | — | 30.8 | 18.1 | – | | 3.5 | 6.4 | 1.1 | 0.8 | 0.7 | 0.8 | 3.2 | — | 29.1 | 12.7 |
| CIS | 20 Jun 1986 | 2,146 | 36.0 | 14.0 | – | | 4.0 | 8.0 | 1.0 | – | 1.0 | 1.0 | 3.0 | 24.0 | 4.0 | 22.0 |
| CIS | 17 Jun 1986 | 1,201 | 34.0 | 14.0 | – | | 4.0 | 10.0 | 2.0 | – | 1.0 | 1.0 | 3.0 | 22.0 | 5.0 | 20.0 |
| OTR–Press | 14 Jun 1986 | 2,497 | 30.0– 33.0 | 12.0– 15.0 | – | | | 7.0– 10.0 | – | – | 5.0 | – | 4.0– 6.0 | – | – | 18.0 |
| CIS | 13 Jun 1986 | 5,601 | 37.0 | 13.0 | – | | 3.0 | 8.0 | 1.0 | – | 1.0 | 1.0 | 3.0 | 26.0 | 5.0 | 24.0 |
| CIS | 9 Jun 1986 | 1,193 | 36.0 | 12.0 | – | | 4.0 | 6.0 | 1.0 | – | 1.0 | 1.0 | 2.0 | 31.0 | 4.0 | 24.0 |
| Gallup/Ya | 2–9 Jun 1986 | 6,046 | 29.2 | 16.6 | – | | 2.4 | 7.7 | 1.3 | 0.8 | 2.1 | 1.3 | 3.3 | 21.0 | 10.6 | 12.6 |
| Demoscopia/El País | 5–8 Jun 1986 | 5,200 | 24.0 | 8.0 | – | | 2.0 | 5.0 | 1.0 | 1.0 | 0.5 | – | 4.0 | 47.0 | 4.0 | 16.0 |
| Iope–Etmar/El Periódico | 3–7 Jun 1986 | 7,209 | 38.9 | 20.7 | – | | 3.9 | 10.0 | 1.5 | 1.1 | 1.7 | 1.9 | 4.4 | 12.1 | – | 18.2 |
| Line Staff/La Vanguardia | 29 May–7 Jun 1986 | 8,871 | 23.2 | 12.0 | – | | 3.3 | 4.5 | 1.2 | – | 3.5 | – | 3.4 | 35.5 | 10.6 | 11.2 |
| CIS | 5 Jun 1986 | 3,932 | 38.0 | 12.0 | – | | 3.0 | 6.0 | 1.0 | – | 1.0 | 1.0 | 3.0 | 27.0 | 5.0 | 26.0 |
| OTR/Tiempo | 4 Jun 1986 | 1,200 | 32.0 | 10.0 | – | | | 6.0 | – | – | 6.0 | 3.2 | 4.0 | 25.0 | – | 22.0 |
| CIS | 29 May 1986 | 5,340 | 33.0 | 12.0 | – | | 3.0 | 7.0 | 1.0 | – | 1.0 | 1.0 | 3.0 | 31.0 | 6.0 | 21.0 |
| CIS | 21–25 May 1986 | 5,615 | 36.0 | 10.0 | – | | 4.0 | 5.0 | 1.0 | – | 1.0 | 1.0 | 3.0 | 30.0 | 5.0 | 26.0 |
| CIS | 15 May 1986 | 4,429 | 34.0 | 11.0 | – | | 3.0 | 5.0 | 1.0 | – | 1.0 | 1.0 | 4.0 | 31.0 | 6.0 | 23.0 |
| CIS | 8 May 1986 | 4,958 | 33.0 | 10.0 | – | 3.0 | 1.0 | 4.0 | 1.0 | – | 2.0 | – | – | 38.0 | 5.0 | 23.0 |
| CIS | 2 May 1986 | 25,667 | 32.0 | 9.0 | – | 4.0 | 1.0 | 3.0 | 1.0 | – | 1.0 | – | – | 39.0 | 5.0 | 23.0 |
| CIS | 16–17 Apr 1986 | 2,489 | 31.6 | 11.6 | – | 4.2 | 1.7 | 2.5 | 1.3 | – | 2.0 | – | – | 35.1 | 7.4 | 20.0 |
| CIS | 10–11 Mar 1986 | 1,188 | 33.0 | 10.0 | – | 3.0 | 2.0 | 3.0 | 1.0 | 1.0 | 2.0 | – | – | 36.0 | 6.0 | 23.0 |
| CIS | 7 Mar 1986 | 2,410 | 32.0 | 10.0 | – | 2.0 | 2.0 | 3.0 | 1.0 | 1.0 | 1.0 | – | – | 39.0 | 7.0 | 22.0 |
| ECO/CIS | 3–4 Mar 1986 | 2,500 | 35.2 | 12.6 | – | 4.1 | 4.1 | 3.5 | 0.7 | 0.5 | 1.1 | – | – | 23.5 | 10.4 | 22.6 |
| CIS | 1 Feb–1 Mar 1986 | 2,454 | 33.7 | 10.9 | – | 2.6 | 1.3 | 3.8 | 0.8 | – | 3.0 | – | – | 32.4 | 8.6 | 22.8 |
| CIS | 27 Feb 1986 | ? | 30.0 | 11.0 | – | 3.0 | 2.0 | 4.0 | 1.0 | 1.0 | 1.0 | – | – | 36.0 | 7.0 | 19.0 |
| CIS | 15–19 Feb 1986 | 2,500 | 29.0 | 10.0 | – | 3.0 | 2.0 | 3.0 | 1.0 | – | 2.0 | – | – | 39.0 | 7.0 | 19.0 |
| CIS | 15 Feb 1986 | ? | 31.0 | 11.0 | – | 3.0 | 2.0 | 4.0 | 1.0 | – | 2.0 | – | – | 37.0 | 8.0 | 20.0 |
| CIS | 10 Feb 1986 | ? | 32.0 | 10.0 | – | 3.0 | 3.0 | 3.0 | 1.0 | 1.0 | 1.0 | – | – | 37.0 | 8.0 | 22.0 |
| CIS | 1 Feb 1986 | 2,493 | 31.5 | 12.4 | – | 2.1 | 1.3 | 3.0 | 0.9 | – | 2.0 | – | – | 34.6 | 9.6 | 19.1 |
| CIS | 18–25 Jan 1986 | 10,632 | 30.0 | 11.0 | – | 3.0 | 2.0 | 3.0 | 1.0 | 1.0 | 1.0 | – | – | 38.0 | 8.0 | 19.0 |
| CIS | 1 Jan 1986 | ? | 31.0 | 9.0 | – | 3.0 | 3.0 | 3.0 | 1.0 | – | 1.0 | – | – | 39.0 | 8.0 | 22.0 |
| CIS | 18–24 Dec 1985 | 2,493 | 29.0 | 11.0 | – | 2.0 | 2.0 | 3.0 | 1.0 | – | 1.0 | – | – | 39.0 | 12.0 | 18.0 |
| CIS | 13–16 Dec 1985 | 2,457 | 30.0 | 11.0 | – | 2.0 | 2.0 | 3.0 | 1.0 | – | 1.0 | – | – | 37.0 | 9.0 | 19.0 |
| Sofemasa/La Vanguardia | 16 Nov–1 Dec 1985 | 1,849 | 26.5 | 10.4 | – | 3.9 | 2.0 | 2.1 | 1.2 | – | 0.8 | – | – | 30.9 | 13.5 | 16.1 |
| AP | 19 Nov 1985 | ? | 29.0 | 22.3 | – | – | – | – | – | – | – | – | – | 26.7 | – | 6.7 |
| CIS | 10 Nov 1985 | 2,490 | 28.0 | 11.0 | – | 3.0 | 2.0 | 3.0 | 1.0 | – | 1.0 | – | – | 42.0 | 9.0 | 17.0 |
| CIS | 1 Nov 1985 | 12,319 | 31.4 | 10.5 | – | 2.3 | 1.6 | 4.0 | 0.6 | – | 1.0 | – | – | 37.1 | 8.9 | 20.9 |
| CIS | 10 Oct 1985 | 1,199 | 31.0 | 11.0 | – | 3.0 | 1.0 | 3.0 | 2.0 | – | 1.0 | – | – | 37.0 | 9.0 | 20.0 |
| CIS | 1 Oct 1985 | 1,232 | 32.1 | 11.0 | – | 4.0 | 1.7 | 4.0 | 1.3 | – | 1.0 | – | – | 34.3 | 8.7 | 21.1 |
| CIS | 10–13 Sep 1985 | 2,581 | 31.1 | 15.8 | – | 3.3 | 3.8 | 5.4 | 1.2 | 0.7 | 2.2 | – | – | 20.2 | 13.0 | 15.3 |
| OTR | 11 Aug 1985 | 2,490 | 29.4 | 14.2 | – | 2.4 | – | 8.7 | – | – | | – | – | 41.1 | 11.9 | 15.2 |
| Iope–Etmar/Mediterráneo | 5–23 Jul 1985 | 1,600 | 30.9 | 12.5 | – | 3.4 | 1.9 | 5.0 | 0.9 | – | 1.9 | – | – | 38.5 | – | 18.4 |
| CIS | 17–20 Jul 1985 | 2,479 | 30.6 | 11.6 | – | 2.9 | 2.5 | 3.6 | 1.5 | 0.7 | 1.0 | – | – | 34.8 | 8.4 | 19.0 |
| CIS | 9–11 Jul 1985 | 2,489 | 28.0 | 11.0 | – | 4.0 | 2.0 | 3.0 | 1.0 | – | – | – | – | 38.0 | 11.0 | 17.0 |
| CIS | 7–11 Jun 1985 | 3,435 | 30.9 | 10.4 | – | 3.3 | 1.9 | 2.6 | 1.0 | – | 1.0 | – | – | 37.0 | 9.6 | 20.5 |
| CIS | 1–5 Jun 1985 | 2,489 | 27.2 | 11.2 | – | 3.5 | 1.9 | 3.9 | 0.9 | 0.2 | 0.6 | – | – | 38.8 | 9.5 | 16.0 |
| CIS | 1 May–1 Jun 1985 | 2,498 | 32.4 | 11.7 | – | 3.4 | 3.0 | 3.8 | 1.3 | 0.4 | 1.4 | – | – | 34.0 | 6.4 | 20.7 |
| CIS | 1 May 1985 | 2,484 | 27.8 | 10.4 | – | 2.9 | 2.9 | 3.7 | 0.9 | 0.6 | 0.7 | – | – | 38.2 | 9.8 | 17.4 |
| Iope–Etmar/Mediterráneo | 1 Mar–23 Apr 1985 | 1,800 | 33.7 | 11.9 | – | 2.6 | 3.3 | 4.1 | 1.3 | – | 1.3 | – | – | 38.2 | – | 21.8 |
| CIS | 1–13 Apr 1985 | 2,485 | 32.4 | 12.4 | – | 2.5 | 2.6 | 3.6 | 0.7 | – | 1.0 | – | – | 33.3 | 8.3 | 20.0 |
| CIS | 13–18 Mar 1985 | 2,493 | 31.9 | 12.3 | – | 3.4 | 1.6 | 4.6 | 1.0 | – | 3.0 | – | – | 31.1 | 8.9 | 19.6 |
| Iope–Etmar/Mediterráneo | 15 Jan–6 Feb 1985 | 1,800 | 36.9 | 11.4 | – | 2.5 | 2.8 | 4.8 | 0.9 | – | 1.8 | – | – | 34.8 | – | 25.5 |
| Iope–Etmar/Mediterráneo | 14 Dec–20 Jan 1985 | 1,800 | 37.6 | 14.5 | – | 3.5 | 3.1 | 5.3 | 1.7 | – | 2.7 | – | – | 25.5 | – | 23.1 |
| CIS | 1 Jan 1985 | 2,688 | 34.5 | 13.7 | – | 3.5 | 2.2 | 3.1 | 1.1 | 0.5 | 2.7 | – | – | 29.2 | 7.4 | 20.8 |
| CIS | 20–30 Dec 1984 | 2,486 | 26.2 | 12.7 | – | 2.5 | 2.1 | 2.1 | 1.0 | 0.3 | 1.7 | – | – | 38.4 | 11.6 | 13.5 |
| CIS | 1 Dec 1984 | 2,505 | 31.2 | 12.9 | – | 4.0 | 3.4 | 3.7 | 1.3 | 0.6 | 1.2 | – | – | 24.5 | 13.3 | 18.3 |
| CIS | 1 Nov–1 Dec 1984 | 12,389 | 30.9 | 12.3 | – | 3.4 | 2.2 | 3.5 | 1.1 | – | 2.0 | – | – | 32.4 | 9.3 | 18.6 |
| CIS | 1 Nov 1984 | 2,244 | 30.7 | 14.3 | – | 3.9 | 3.5 | 2.2 | 1.6 | 0.8 | 0.8 | – | – | 22.6 | 14.7 | 16.4 |
| Aresco/AP | 31 Oct 1984 | 1,037 | 30.5 | 24.1 | – | 5.3 | – | 1.9 | – | – | – | – | – | 9.1 | 23.6 | 6.4 |
| CIS | 27–30 Oct 1984 | 2,491 | 25.7 | 11.2 | – | 2.5 | 3.4 | 2.6 | 1.3 | 0.6 | – | – | – | 41.0 | 9.8 | 14.5 |
| Servicio de Estudios/El País | 22–24 Oct 1984 | 2,000 | 36.0 | 14.9 | 0.5 | 4.6 | 2.4 | 3.2 | 1.8 | – | – | – | – | 32.8 | 32.8 | 21.1 |
| Iope–Etmar/Mediterráneo | 14 Sep–8 Oct 1984 | 1,852 | 35.5 | 12.9 | – | 4.1 | 4.0 | 4.8 | 1.2 | – | 2.1 | – | – | 29.0 | – | 22.6 |
| CIS | 10 Sep 1984 | ? | 34.9 | 15.1 | – | 4.8 | 4.7 | 2.3 | 2.1 | 1.1 | 0.4 | – | – | 15.5 | 13.5 | 19.8 |
| CIS | 1 Sep 1984 | 2,466 | 26.5 | 11.6 | – | 3.9 | 2.9 | 2.2 | 0.9 | – | – | – | – | 39.4 | 9.8 | 14.9 |
| CIS | 23–26 Jul 1984 | 2,461 | 25.1 | 11.8 | – | 3.7 | 3.3 | 2.1 | 1.1 | 0.4 | – | – | – | 39.1 | 11.2 | 13.3 |
| CIS | 1 Jul 1984 | 2,483 | 29.4 | 10.6 | – | 3.9 | 2.9 | 1.9 | 1.5 | 0.5 | – | – | – | 37.2 | 9.9 | 18.8 |
| CIS | 1 May 1984 | 2,481 | 28.5 | 11.9 | – | 3.5 | 3.7 | 3.0 | 1.2 | – | – | – | – | 36.3 | 8.5 | 16.6 |
| CIS | 25–28 Apr 1984 | 2,474 | 29.7 | 13.1 | – | 2.9 | 2.6 | 2.1 | 1.1 | – | 0.5 | – | – | 35.0 | 10.8 | 16.6 |
| CIS | 1 Mar 1984 | 2,484 | 26.6 | 10.6 | – | 2.8 | 2.5 | 1.1 | 1.0 | – | – | – | – | 44.2 | 8.4 | 16.0 |
| CIS | 1 Feb–1 Mar 1984 | 2,595 | 29.5 | 11.3 | – | 2.8 | 2.0 | 1.7 | 1.2 | 0.5 | 0.3 | – | – | 40.8 | 8.3 | 18.2 |
| CIS | 1 Jan–1 Feb 1984 | 2,948 | 28.2 | 13.6 | – | 2.7 | 1.5 | 1.7 | 1.4 | – | – | – | – | 37.7 | 9.7 | 14.6 |
| CIS | 30 Dec–3 Jan 1984 | 2,489 | 32.5 | 11.2 | – | 2.6 | 2.7 | 1.6 | 1.0 | – | – | – | – | 38.2 | 7.5 | 21.3 |
| CIS | 1 Jan 1984 | 2,495 | 33.8 | 10.8 | – | 3.3 | 1.4 | 1.3 | 1.1 | 0.3 | 0.6 | – | – | 37.3 | 8.0 | 23.0 |
| CIS | 1 Nov–1 Dec 1983 | 11,077 | 36.0 | 11.0 | – | 4.0 | 2.0 | 1.0 | 1.0 | – | – | – | – | 34.0 | 9.0 | 25.0 |
| Iope–Etmar/Mediterráneo | 2–27 Nov 1983 | 2,200 | 34.5 | 15.9 | – | 2.4 | 3.1 | 3.0 | 1.2 | – | 2.1 | – | – | 33.0 | – | 18.6 |
| Sofemasa/El País | 16–22 Nov 1983 | 3,000 | 37.4 | 18.7 | 1.2 | 4.7 | 2.1 | 1.1 | 1.6 | – | – | – | – | 27.7 | 27.7 | 18.7 |
| CIS | 9–13 Nov 1983 | 2,476 | 33.1 | 13.9 | – | 3.4 | 1.6 | 1.1 | 1.7 | – | – | – | – | 34.1 | 7.6 | 19.2 |
| CIS | 16 May 1983 | 3,368 | 45.4 | 16.2 | – | 3.9 | 2.0 | 1.8 | 1.3 | 0.6 | 0.2 | – | – | 20.7 | 4.9 | 29.2 |
| CIS | 1 Mar 1983 | 2,488 | 40.0 | 13.0 | – | 3.0 | 3.0 | 4.0 | 1.0 | 1.0 | – | – | – | 29.0 | 5.0 | 27.0 |
| Metra Seis/Agencia Lid | 22–24 Feb 1983 | 1,002 | 38.4 | 10.8 | 1.1 | 2.2 | 1.3 | 0.3 | 1.1 | 0.6 | – | – | – | 36.0 | 8.1 | 27.6 |
| CIS | 1 Nov 1982 | 2,394 | 39.8 | 11.1 | 3.2 | 2.4 | 2.3 | 1.2 | 1.5 | 0.5 | – | – | – | 32.0 | 3.2 | 28.7 |
| 1982 general election | 28 Oct 1982 | — | 37.7 | 20.7 | 5.3 | 3.2 | 2.9 | 2.3 | 1.5 | 0.8 | – | – | – | — | 20.0 | 17.0 |

#### Victory preference

The table below lists opinion polling on the victory preferences for each party in the event of a general election taking place.

##### Color key

Poll conducted after legal ban on opinion polls
| Polling firm/Commissioner | Fieldwork date | Sample size | | | | | | PNV | | | | Other/ None | ? | Lead |
| CIS | 20 Jun 1986 | 2,146 | 42.0 | 15.0 | – | 4.0 | 10.0 | 1.0 | 1.0 | 1.0 | 3.0 | 2.0 | 21.0 | 27.0 |
| CIS | 17 Jun 1986 | 1,201 | 38.0 | 15.0 | – | 4.0 | 12.0 | 1.0 | 1.0 | 1.0 | 2.0 | 2.0 | 24.0 | 23.0 |
| CIS | 13 Jun 1986 | 5,601 | 42.0 | 14.0 | – | 3.0 | 9.0 | 1.0 | 1.0 | 1.0 | 3.0 | 2.0 | 24.0 | 28.0 |
| CIS | 9 Jun 1986 | 1,193 | 40.0 | 14.0 | – | 4.0 | 8.0 | – | 2.0 | 1.0 | 2.0 | 2.0 | 28.0 | 26.0 |
| CIS | 5 Jun 1986 | 3,932 | 43.0 | 13.0 | – | 4.0 | 8.0 | – | 1.0 | 1.0 | 3.0 | 2.0 | 25.0 | 30.0 |
| CIS | 29 May 1986 | 5,340 | 39.0 | 13.0 | – | 4.0 | 9.0 | 1.0 | 2.0 | 1.0 | 4.0 | 2.0 | 25.0 | 26.0 |
| CIS | 21–25 May 1986 | 5,615 | 40.0 | 11.0 | – | 4.0 | 6.0 | – | 2.0 | 1.0 | 4.0 | 2.0 | 31.0 | 29.0 |
| CIS | 15 May 1986 | 4,429 | 38.0 | 12.0 | – | 4.0 | 7.0 | 1.0 | 2.0 | 1.0 | 4.0 | 2.0 | 29.0 | 26.0 |
| CIS | 8 May 1986 | 4,958 | 43.0 | 13.0 | 3.0 | 3.0 | 6.0 | – | 4.0 | – | – | 3.0 | 17.0 | 30.0 |
| CIS | 2 May 1986 | 25,667 | 45.0 | 11.0 | 5.0 | – | 3.0 | – | – | – | – | 2.0 | 34.0 | 34.0 |
| CIS | 16–17 Apr 1986 | 2,489 | 39.0 | 14.0 | 4.0 | 1.0 | 4.0 | – | 3.0 | – | – | – | 32.0 | 25.0 |

#### Victory likelihood

The table below lists opinion polling on the perceived likelihood of victory for each party in the event of a general election taking place.

##### Color key

Poll conducted after legal ban on opinion polls
| Polling firm/Commissioner | Fieldwork date | Sample size | | | | | | | Other/ None | ? | Lead |
| CIS | 20 Jun 1986 | 2,146 | 70.0 | 5.0 | – | 2.0 | – | – | – | 23.0 | 65.0 |
| CIS | 17 Jun 1986 | 1,201 | 71.0 | 6.0 | – | 2.0 | – | – | – | 21.0 | 65.0 |
| CIS | 13 Jun 1986 | 5,601 | 72.0 | 5.0 | – | 1.0 | – | – | – | 20.0 | 67.0 |
| CIS | 9 Jun 1986 | 1,193 | 74.0 | 3.0 | – | 1.0 | – | – | – | 21.0 | 71.0 |
| Line Staff/La Vanguardia | 29 May–7 Jun 1986 | 8,871 | 75.0 | 5.0 | – | 1.1 | 0.7 | 0.4 | 0.2 | 17.6 | 70.0 |
| CIS | 5 Jun 1986 | 3,932 | 72.0 | 4.0 | – | 1.0 | – | – | – | 23.0 | 68.0 |
| CIS | 21–25 May 1986 | 5,615 | 65.0 | 5.0 | – | – | – | – | – | 30.0 | 60.0 |
| CIS | 15 May 1986 | 4,429 | 65.0 | 4.0 | – | – | 1.0 | – | 1.0 | 29.0 | 61.0 |
| CIS | 8 May 1986 | 4,958 | 67.0 | 4.0 | – | – | – | – | 1.0 | 28.0 | 63.0 |
| CIS | 2 May 1986 | 25,667 | 61.0 | 4.0 | – | – | – | – | – | 35.0 | 57.0 |
| CIS | 16–17 Apr 1986 | 2,489 | 59.0 | 6.0 | 1.0 | 1.0 | – | – | – | 33.0 | 53.0 |

#### Senate projections

| Polling firm/Commissioner | Fieldwork date | Sample size | | | | | | PNV | |
| 1986 general election | 22 Jun 1986 | — | 124 | 63 | – | 8 | 3 | 7 | 1 |
| Demoscopia/El País | 5–8 Jun 1986 | 5,200 | 117/129 | 55/66 | – | 6/8 | 4 | 7 | 1 |
| Demoscopia/El País | 24–27 May 1986 | 5,200 | 128/140 | 50/62 | – | 6/8 | 3/5 | 5/7 | – |
| 1982 general election | 28 Oct 1982 | — | 134 | 54 | 4 | 5 | 0 | 7 | 0 |

## Leadership polling
### Preferred prime minister

The table below lists opinion polling on leader preferences to become prime minister.

#### All candidates
##### Color key

Poll conducted after legal ban on opinion polls
| Polling firm/Commissioner | Fieldwork date | Sample size | | | | | | | Other/ None/ Not care | ? | Lead |
| Polling firm/Commissioner | Fieldwork date | Sample size | González PSOE | Guerra PSOE | Fraga AP | Iglesias IU | Roca CiU/PRD | Suárez CDS | Other/ None/ Not care | ? | Lead |
| CIS | 20 Jun 1986 | 2,146 | 41.0 | – | 15.0 | 3.0 | 7.0 | 14.0 | – | 20.0 | 26.0 |
| CIS | 17 Jun 1986 | 1,201 | 41.0 | – | 15.0 | 3.0 | 6.0 | 15.0 | – | 20.0 | 26.0 |
| CIS | 13 Jun 1986 | 5,601 | 46.0 | – | 14.0 | 3.0 | 5.0 | 12.0 | – | 20.0 | 32.0 |
| CIS | 9 Jun 1986 | 1,193 | 43.0 | – | 13.0 | 2.0 | 7.0 | 11.0 | – | 24.0 | 30.0 |
| Line Staff/La Vanguardia | 29 May–7 Jun 1986 | 8,871 | 38.0 | 1.0 | 10.4 | 1.1 | 9.8 | 14.9 | 7.2 | 17.6 | 23.1 |
| CIS | 5 Jun 1986 | 3,932 | 46.0 | – | 13.0 | 3.0 | 6.0 | 11.0 | – | 21.0 | 33.0 |
| ECO/Cadena SER | 2–3 Jun 1986 | 1,311 | 36.0 | – | 13.2 | – | 10.1 | 15.8 | – | – | 20.2 |
| CIS | 29 May 1986 | 5,340 | 42.0 | – | 13.0 | 3.0 | 7.0 | 15.0 | – | 20.0 | 27.0 |
| CIS | 21–25 May 1986 | 5,615 | 44.0 | – | 11.0 | 4.0 | 8.0 | 10.0 | – | 24.0 | 33.0 |
| ECO/Cadena SER | 19 May 1986 | ? | 41.0 | – | 13.5 | – | 12.1 | 11.8 | – | – | 27.5 |
| CIS | 15 May 1986 | 4,429 | 43.0 | – | 12.0 | 4.0 | 8.0 | 11.0 | – | 22.0 | 31.0 |
| CIS | 1 Feb–1 Mar 1986 | 2,454 | 45.0 | – | 12.0 | 3.0 | 7.0 | 9.0 | 1.0 | 23.0 | 33.0 |
| Iope–Etmar/Mediterráneo | 19–23 Apr 1985 | 900 | 42.0 | – | 14.0 | 2.0 | 11.0 | 13.0 | 3.0 | 16.0 | 28.0 |
| ECO/Cambio 16 | 11–14 Jan 1985 | 1,307 | 43.0 | – | 16.0 | – | 8.0 | 17.0 | – | – | 26.0 |

#### González vs. Guerra

| Polling firm/Commissioner | Fieldwork date | Sample size | | | Other/ None/ Not care | ? | Lead |
| Polling firm/Commissioner | Fieldwork date | Sample size | González PSOE | Guerra PSOE | Other/ None/ Not care | ? | Lead |
| CIS | 8 May 1986 | 4,958 | 67.0 | 7.0 | – | 26.0 | 60.0 |
| CIS | 1 Feb–1 Mar 1986 | 2,454 | 60.0 | 5.0 | – | 35.0 | 55.0 |
| CIS | 13–18 Mar 1985 | 2,493 | 59.0 | 8.0 | – | 33.0 | 51.0 |
| CIS | 1 Jan–1 Feb 1984 | 2,948 | 58.0 | 7.0 | – | 35.0 | 51.0 |
| CIS | 16 May 1983 | 3,368 | 59.8 | 10.9 | – | 29.3 | 48.9 |
| CIS | 1 May 1983 | 2,495 | 69.0 | 9.0 | – | 22.0 | 60.0 |

#### González vs. Fraga

| Polling firm/Commissioner | Fieldwork date | Sample size | | | Other/ None/ Not care | ? | Lead |
| Polling firm/Commissioner | Fieldwork date | Sample size | González PSOE | Fraga AP | Other/ None/ Not care | ? | Lead |
| CIS | 8 May 1986 | 4,958 | 62.0 | 17.0 | – | 21.0 | 45.0 |
| CIS | 1 Feb–1 Mar 1986 | 2,454 | 57.0 | 15.0 | – | 28.0 | 42.0 |
| CIS | 13–18 Mar 1985 | 2,493 | 57.0 | 17.0 | – | 26.0 | 40.0 |
| Iope–Etmar/Mediterráneo | 14–19 Dec 1984 | 900 | 59.0 | 20.0 | – | 21.0 | 39.0 |
| CIS | 1 Jan–1 Feb 1984 | 2,948 | 55.0 | 18.0 | – | 27.0 | 37.0 |
| Emopública/PSOE | 30 Nov 1983 | ? | 59.0 | 19.0 | 10.0 | 12.0 | 40.0 |
| CIS | 16 May 1983 | 3,368 | 61.5 | 19.1 | – | 19.5 | 42.4 |
| CIS | 1 May 1983 | 2,495 | 65.0 | 20.0 | – | 15.0 | 45.0 |

#### González vs. Iglesias

| Polling firm/Commissioner | Fieldwork date | Sample size | | | Other/ None/ Not care | ? | Lead |
| Polling firm/Commissioner | Fieldwork date | Sample size | González PSOE | Iglesias PCE/IU | Other/ None/ Not care | ? | Lead |
| Iope–Etmar/Mediterráneo | 14–19 Dec 1984 | 900 | 73.0 | 7.0 | – | 20.0 | 66.0 |

#### González vs. Roca

| Polling firm/Commissioner | Fieldwork date | Sample size | | | Other/ None/ Not care | ? | Lead |
| Polling firm/Commissioner | Fieldwork date | Sample size | González PSOE | Roca CiU/PRD | Other/ None/ Not care | ? | Lead |
| CIS | 8 May 1986 | 4,958 | 59.0 | 18.0 | – | 23.0 | 41.0 |
| CIS | 1 Feb–1 Mar 1986 | 2,454 | 54.0 | 16.0 | – | 30.0 | 38.0 |
| CIS | 13–18 Mar 1985 | 2,493 | 53.0 | 15.0 | – | 32.0 | 38.0 |
| Iope–Etmar/Mediterráneo | 14–19 Dec 1984 | 900 | 56.0 | 20.0 | – | 24.0 | 36.0 |
| CIS | 1 Jan–1 Feb 1984 | 2,948 | 55.0 | 11.0 | – | 34.0 | 44.0 |
| CIS | 16 May 1983 | 3,368 | 60.5 | 11.6 | – | 28.0 | 48.9 |
| CIS | 1 May 1983 | 2,495 | 64.0 | 12.0 | – | 24.0 | 52.0 |

#### González vs. Suárez

| Polling firm/Commissioner | Fieldwork date | Sample size | | | Other/ None/ Not care | ? | Lead |
| Polling firm/Commissioner | Fieldwork date | Sample size | González PSOE | Suárez CDS | Other/ None/ Not care | ? | Lead |
| CIS | 8 May 1986 | 4,958 | 52.0 | 26.0 | – | 22.0 | 26.0 |
| CIS | 1 Feb–1 Mar 1986 | 2,454 | 49.0 | 21.0 | – | 30.0 | 28.0 |
| CIS | 13–18 Mar 1985 | 2,493 | 51.0 | 21.0 | – | 28.0 | 30.0 |
| Iope–Etmar/Mediterráneo | 14–19 Dec 1984 | 900 | 56.0 | 22.0 | – | 22.0 | 34.0 |
| CIS | 1 Jan–1 Feb 1984 | 2,948 | 55.0 | 15.0 | – | 30.0 | 40.0 |
| CIS | 16 May 1983 | 3,368 | 64.0 | 12.8 | – | 23.1 | 51.2 |
| CIS | 1 May 1983 | 2,495 | 66.0 | 16.0 | – | 17.0 | 50.0 |

#### González vs. Arzalluz

| Polling firm/Commissioner | Fieldwork date | Sample size | | | Other/ None/ Not care | ? | Lead |
| Polling firm/Commissioner | Fieldwork date | Sample size | González PSOE | Arzalluz PNV | Other/ None/ Not care | ? | Lead |
| CIS | 16 May 1983 | 3,368 | 61.6 | 3.1 | – | 35.4 | 58.5 |

#### Guerra vs. Fraga

| Polling firm/Commissioner | Fieldwork date | Sample size | | | Other/ None/ Not care | ? | Lead |
| Polling firm/Commissioner | Fieldwork date | Sample size | Guerra PSOE | Fraga AP | Other/ None/ Not care | ? | Lead |
| CIS | 8 May 1986 | 4,958 | 48.0 | 23.0 | – | 31.0 | 25.0 |
| CIS | 1 Feb–1 Mar 1986 | 2,454 | 41.0 | 20.0 | – | 39.0 | 21.0 |
| CIS | 13–18 Mar 1985 | 2,493 | 40.0 | 22.0 | – | 38.0 | 18.0 |
| CIS | 1 Jan–1 Feb 1984 | 2,948 | 39.0 | 23.0 | – | 38.0 | 16.0 |
| CIS | 16 May 1983 | 3,368 | 50.5 | 22.5 | – | 26.9 | 28.0 |
| CIS | 1 May 1983 | 2,495 | 51.0 | 27.0 | – | 22.0 | 24.0 |

#### Guerra vs. Roca

| Polling firm/Commissioner | Fieldwork date | Sample size | | | Other/ None/ Not care | ? | Lead |
| Polling firm/Commissioner | Fieldwork date | Sample size | Guerra PSOE | Roca CiU/PRD | Other/ None/ Not care | ? | Lead |
| CIS | 8 May 1986 | 4,958 | 39.0 | 28.0 | – | 33.0 | 11.0 |
| CIS | 1 Feb–1 Mar 1986 | 2,454 | 35.0 | 23.0 | – | 42.0 | 12.0 |
| CIS | 13–18 Mar 1985 | 2,493 | 37.0 | 22.0 | – | 41.0 | 15.0 |
| CIS | 1 Jan–1 Feb 1984 | 2,948 | 36.0 | 18.0 | – | 46.0 | 18.0 |
| CIS | 16 May 1983 | 3,368 | 46.8 | 17.2 | – | 36.0 | 29.6 |
| CIS | 1 May 1983 | 2,495 | 49.0 | 19.0 | – | 32.0 | 30.0 |

#### Guerra vs. Suárez

| Polling firm/Commissioner | Fieldwork date | Sample size | | | Other/ None/ Not care | ? | Lead |
| Polling firm/Commissioner | Fieldwork date | Sample size | Guerra PSOE | Suárez CDS | Other/ None/ Not care | ? | Lead |
| CIS | 8 May 1986 | 4,958 | 31.0 | 42.0 | – | 27.0 | 11.0 |
| CIS | 1 Feb–1 Mar 1986 | 2,454 | 29.0 | 36.0 | – | 35.0 | 7.0 |
| CIS | 13–18 Mar 1985 | 2,493 | 30.0 | 36.0 | – | 34.0 | 6.0 |
| CIS | 1 Jan–1 Feb 1984 | 2,948 | 34.0 | 28.0 | – | 38.0 | 6.0 |
| CIS | 16 May 1983 | 3,368 | 48.2 | 21.8 | – | 30.1 | 26.4 |
| CIS | 1 May 1983 | 2,495 | 48.0 | 28.0 | – | 24.0 | 20.0 |

#### Guerra vs. Arzalluz

| Polling firm/Commissioner | Fieldwork date | Sample size | | | Other/ None/ Not care | ? | Lead |
| Polling firm/Commissioner | Fieldwork date | Sample size | Guerra PSOE | Arzalluz PNV | Other/ None/ Not care | ? | Lead |
| CIS | 16 May 1983 | 3,368 | 46.9 | 5.7 | – | 47.4 | 41.2 |

#### Fraga vs. Roca

| Polling firm/Commissioner | Fieldwork date | Sample size | | | Other/ None/ Not care | ? | Lead |
| Polling firm/Commissioner | Fieldwork date | Sample size | Fraga AP | Roca CiU/PRD | Other/ None/ Not care | ? | Lead |
| CIS | 8 May 1986 | 4,958 | 19.0 | 42.0 | – | 39.0 | 23.0 |
| CIS | 1 Feb–1 Mar 1986 | 2,454 | 17.0 | 36.0 | – | 47.0 | 19.0 |
| CIS | 13–18 Mar 1985 | 2,493 | 20.0 | 34.0 | – | 46.0 | 14.0 |
| CIS | 1 Jan–1 Feb 1984 | 2,948 | 23.0 | 28.0 | – | 49.0 | 5.0 |
| CIS | 16 May 1983 | 3,368 | 23.0 | 26.1 | – | 50.8 | 3.1 |
| CIS | 1 May 1983 | 2,495 | 28.0 | 31.0 | – | 41.0 | 3.0 |

#### Fraga vs. Suárez

| Polling firm/Commissioner | Fieldwork date | Sample size | | | Other/ None/ Not care | ? | Lead |
| Polling firm/Commissioner | Fieldwork date | Sample size | Fraga AP | Suárez CDS | Other/ None/ Not care | ? | Lead |
| CIS | 8 May 1986 | 4,958 | 16.0 | 58.0 | – | 26.0 | 42.0 |
| CIS | 1 Feb–1 Mar 1986 | 2,454 | 15.0 | 50.0 | – | 35.0 | 35.0 |
| CIS | 13–18 Mar 1985 | 2,493 | 17.0 | 51.0 | – | 32.0 | 34.0 |
| CIS | 1 Jan–1 Feb 1984 | 2,948 | 22.0 | 39.0 | – | 39.0 | 17.0 |
| CIS | 16 May 1983 | 3,368 | 23.3 | 41.9 | – | 34.8 | 18.6 |
| CIS | 1 May 1983 | 2,495 | 27.0 | 47.0 | – | 26.0 | 20.0 |

#### Fraga vs. Arzalluz

| Polling firm/Commissioner | Fieldwork date | Sample size | | | Other/ None/ Not care | ? | Lead |
| Polling firm/Commissioner | Fieldwork date | Sample size | Fraga AP | Arzalluz PNV | Other/ None/ Not care | ? | Lead |
| CIS | 16 May 1983 | 3,368 | 23.5 | 13.4 | – | 63.1 | 10.1 |

#### Roca vs. Suárez

| Polling firm/Commissioner | Fieldwork date | Sample size | | | Other/ None/ Not care | ? | Lead |
| Polling firm/Commissioner | Fieldwork date | Sample size | Roca CiU/PRD | Suárez CDS | Other/ None/ Not care | ? | Lead |
| CIS | 8 May 1986 | 4,958 | 21.0 | 50.0 | – | 19.0 | 29.0 |
| CIS | 1 Feb–1 Mar 1986 | 2,454 | 18.0 | 41.0 | – | 41.0 | 23.0 |
| CIS | 13–18 Mar 1985 | 2,493 | 17.0 | 45.0 | – | 38.0 | 28.0 |
| CIS | 1 Jan–1 Feb 1984 | 2,948 | 18.0 | 36.0 | – | 46.0 | 18.0 |
| CIS | 16 May 1983 | 3,368 | 19.6 | 34.8 | – | 45.5 | 15.2 |
| CIS | 1 May 1983 | 2,495 | 21.0 | 42.0 | – | 36.0 | 21.0 |

#### Roca vs. Arzalluz

| Polling firm/Commissioner | Fieldwork date | Sample size | | | Other/ None/ Not care | ? | Lead |
| Polling firm/Commissioner | Fieldwork date | Sample size | Roca CiU/PRD | Arzalluz PNV | Other/ None/ Not care | ? | Lead |
| CIS | 16 May 1983 | 3,368 | 22.4 | 7.8 | – | 69.8 | 14.6 |

#### Suárez vs. Arzalluz

| Polling firm/Commissioner | Fieldwork date | Sample size | | | Other/ None/ Not care | ? | Lead |
| Polling firm/Commissioner | Fieldwork date | Sample size | Suárez CDS | Arzalluz PNV | Other/ None/ Not care | ? | Lead |
| CIS | 16 May 1983 | 3,368 | 37.9 | 7.5 | – | 54.6 | 30.4 |

### Approval ratings
#### Felipe González

| Polling firm/Commissioner | Fieldwork date | Sample size | Felipe González (PSOE) | Felipe González (PSOE) | Felipe González (PSOE) | Felipe González (PSOE) |
| Polling firm/Commissioner | Fieldwork date | Sample size | Y | N | ? | Net |
| CIS | 13 Jun 1986 | 5,601 | 55.0 | 32.0 | 13.0 | +23.0 |
| CIS | 9 Jun 1986 | 1,193 | 50.0 | 31.0 | 19.0 | +19.0 |
| CIS | 5 Jun 1986 | 3,932 | 52.0 | 30.0 | 18.0 | +22.0 |
| CIS | 29 May 1986 | 5,340 | 54.0 | 33.0 | 13.0 | +21.0 |
| CIS | 21–25 May 1986 | 5,615 | 56.0 | 30.0 | 13.0 | +26.0 |
| CIS | 15 May 1986 | 4,429 | 55.0 | 31.0 | 14.0 | +24.0 |
| CIS | 8 May 1986 | 4,958 | 49.0 | 29.0 | 22.0 | +20.0 |
| CIS | 2 May 1986 | 25,667 | 56.0 | 26.0 | 18.0 | +30.0 |
| CIS | 1 Feb–1 Mar 1986 | 2,454 | 54.0 | 29.0 | 17.0 | +25.0 |
| CIS | 1 Feb 1986 | 2,493 | 57.0 | 30.0 | 13.0 | +27.0 |
| CIS | 1 Nov 1985 | 12,319 | 57.0 | 27.0 | 16.0 | +30.0 |
| CIS | 1 Oct 1985 | 1,232 | 54.0 | 30.0 | 16.0 | +24.0 |
| CIS | 1 May 1985 | 2,484 | 54.2 | 29.9 | 16.0 | +24.3 |
| Gallup | 19–28 Jan 1985 | 1,033 | 54.0 | 28.0 | 18.0 | +26.0 |
| CIS | 1 Nov–1 Dec 1984 | 12,389 | 54.0 | 30.0 | 16.0 | +24.0 |
| Gallup | 11–30 Nov 1984 | 1,035 | 56.0 | 29.0 | 15.0 | +27.0 |
| Servicio de Estudios/El País | 22–24 Oct 1984 | 2,000 | 60.0 | 26.6 | 13.4 | +33.4 |
| Gallup | 22 Sep–9 Oct 1984 | 1,024 | 58.0 | 28.0 | 14.0 | +30.0 |
| Iope–Etmar/Mediterráneo | 14 Sep–8 Oct 1984 | 1,852 | 57.0 | 32.0 | 11.0 | +25.0 |
| Gallup | 24 Aug–4 Sep 1984 | ? | 59.0 | 25.0 | 16.0 | +34.0 |
| Gallup | 10–21 Jul 1984 | 1,029 | 54.0 | 31.0 | 15.0 | +23.0 |
| Gallup | 15–26 May 1984 | 989 | 45.0 | 26.0 | 29.0 | +19.0 |
| Gallup | 9–19 Apr 1984 | 1,024 | 56.0 | 27.0 | 17.0 | +29.0 |
| Gallup | 12–24 Mar 1984 | 1,031 | 49.0 | 31.0 | 20.0 | +18.0 |
| Gallup | 23 Jan–8 Feb 1984 | 954 | 58.0 | 17.0 | 25.0 | +41.0 |
| Iope–Etmar/Mediterráneo | 2–27 Nov 1983 | 2,200 | 68.0 | 14.0 | 18.0 | +54.0 |
| Gallup | 5–18 Oct 1983 | 959 | 58.0 | 22.0 | 20.0 | +36.0 |
| Gallup | 6–19 Jul 1983 | 1,027 | 58.0 | 15.0 | 26.0 | +43.0 |
| Gallup | 2–15 Feb 1983 | 1,024 | 62.0 | 13.0 | 25.0 | +49.0 |