# 1997 Chilean parliamentary election

Parliamentary elections were held in Chile on 11 December 1997. The Concert of Parties for Democracy alliance maintained its majority in both the Chamber of Deputies and the Senate.

## Results
### Senate

Seats :
| Party or alliance | Party or alliance | Party or alliance | Party or alliance | Votes | % | Won | Not up | Total | +/– |
| | Concertación | | Christian Democratic Party | 1,238,540 | 29.22 | 10 | 4 | 14 | +1 |
| | Concertación | | Socialist Party of Chile | 617,947 | 14.58 | 1 | 3 | 4 | –1 |
| | Concertación | | Party for Democracy | 182,076 | 4.29 | 0 | 2 | 2 | 0 |
| | Concertación | | Social Democrat Radical Party | 76,091 | 1.79 | 0 | 0 | 0 | –1 |
| | Concertación | Total | Total | 2,114,654 | 49.88 | 11 | 9 | 20 | –1 |
| | Union for Chile | | Independent Democratic Union | 728,680 | 17.19 | 2 | 3 | 5 | +2 |
| | Union for Chile | | National Renewal | 629,394 | 14.85 | 2 | 5 | 7 | –4 |
| | Union for Chile | | Independents | 195,118 | 4.60 | 4 | 1 | 5 | +3 |
| | Union for Chile | Total | Total | 1,553,192 | 36.64 | 9 | 8 | 17 | +1 |
| | The Left | | Communist Party of Chile | 357,825 | 8.44 | 0 | 0 | 0 | 0 |
| | The Left | | Independents | 8,406 | 0.20 | 0 | 0 | 0 | 0 |
| | The Left | Total | Total | 366,231 | 8.64 | 0 | 0 | 0 | 0 |
| | Chile 2000 | | Progressive Union of the Centrist Center | 18,023 | 0.43 | 0 | 1 | 1 | 0 |
| | Chile 2000 | | Independents | 93,150 | 2.20 | 0 | 0 | 0 | – |
| | Chile 2000 | Total | Total | 111,173 | 2.62 | 0 | 1 | 1 | – |
| | Humanist Party | Humanist Party | Humanist Party | 94,116 | 2.22 | 0 | 0 | 0 | 0 |
| Appointed senators | Appointed senators | Appointed senators | Appointed senators | | | 9 | 0 | 9 | +1 |
| Former presidents | Former presidents | Former presidents | Former presidents | | | 1 | 0 | 1 | +1 |
| Total | Total | Total | Total | 4,239,366 | 100.00 | 30 | 18 | 48 | +2 |
| Valid votes | Valid votes | Valid votes | Valid votes | 4,239,366 | 83.08 | | | | |
| Invalid/blank votes | Invalid/blank votes | Invalid/blank votes | Invalid/blank votes | 863,540 | 16.92 | | | | |
| Total votes | Total votes | Total votes | Total votes | 5,102,906 | 100.00 | | | | |
| Registered voters/turnout | Registered voters/turnout | Registered voters/turnout | Registered voters/turnout | 5,794,935 | 88.06 | | | | |
| Source: Nohlen, SERVEL, IPU ||||||||||

### Chamber of Deputies

| | Concertación | | Christian Democratic Party | 1,331,745 | 22.98 | 38 | +1 |
| | Concertación | | Party for Democracy | 727,293 | 12.55 | 16 | +1 |
| | Concertación | | Socialist Party of Chile | 640,397 | 11.05 | 11 | –4 |
| | Concertación | | Social Democratic Radical Party | 181,538 | 3.13 | 4 | +2 |
| | Concertación | | Independents | 46,719 | 0.81 | 0 | –1 |
| | Concertación | Total | Total | 2,927,692 | 50.51 | 69 | –1 |
| | Union for Chile | | National Renewal | 971,903 | 16.77 | 23 | –6 |
| | Union for Chile | | Independent Democratic Union | 837,736 | 14.45 | 17 | +2 |
| | Union for Chile | | Party of the South | 20,813 | 0.36 | 1 | +1 |
| | Union for Chile | | Independents | 270,940 | 4.67 | 6 | +2 |
| | Union for Chile | Total | Total | 2,101,392 | 36.26 | 47 | –1 |
| | The Left | | Communist Party of Chile | 398,588 | 6.88 | 0 | 0 |
| | The Left | | New People's Alliance | 8,971 | 0.15 | 0 | New |
| | The Left | | Independents | 26,589 | 0.46 | 0 | 0 |
| | The Left | Total | Total | 434,148 | 7.49 | 0 | 0 |
| | Humanist Party | Humanist Party | Humanist Party | 168,597 | 2.91 | 0 | 0 |
| | Chile 2000 | | Progressive Union of the Centrist Center | 68,822 | 1.19 | 2 | 0 |
| | Chile 2000 | | Independents | 55,100 | 0.95 | 0 | – |
| | Chile 2000 | Total | Total | 123,922 | 2.14 | 2 | 0 |
| | Independents | Independents | Independents | 40,022 | 0.69 | 2 | +2 |
| Total | Total | Total | Total | 5,795,773 | 100.00 | 120 | 0 |
| Valid votes | Valid votes | Valid votes | Valid votes | 5,795,773 | 82.25 | | |
| Invalid/blank votes | Invalid/blank votes | Invalid/blank votes | Invalid/blank votes | 1,250,578 | 17.75 | | |
| Total votes | Total votes | Total votes | Total votes | 7,046,351 | 100.00 | | |
| Registered voters/turnout | Registered voters/turnout | Registered voters/turnout | Registered voters/turnout | 8,077,743 | 87.23 | | |
| Source: SERVEL ||||||||