# 1986 Nice International Open – Singles

Henri Leconte was the defending champion, but did not compete this year.
Emilio Sánchez won the title by defeating Paul McNamee 6–1, 6–3 in the final.

## Seeds

* Thierry Tulasne (quarterfinals)
* Martín Jaite (first round)
* Mikael Pernfors (first round)
* Guy Forget (second round)
* Andreas Maurer (second round)
* Peter Lundgren (first round)
* Sergio Casal (semifinals)
* Jaime Yzaga (first round)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final |
| | Paul McNamee | 4 | 7 | 6 | | | |
| Q | Jordi Arrese | 6 | 6 | 4 | | | |
| Q | Jordi Arrese | 6 | 6 | 4 | Paul McNamee | 1 | 3 |
| | | | | | Emilio Sánchez | 6 | 6 |
| | Emilio Sánchez | 7 | 6 | | Emilio Sánchez | 6 | 6 |
| 7 | Sergio Casal | 5 | 2 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | T Tulasne | 6 | 6 | | | | | | | | | | | | | | | |
| | H Schwaier | 3 | 0 | | 1 | T Tulasne | 3 | 6 | 6 | | | | | | | | | |
| | D Pérez | 5 | 6 | 6 | | D Pérez | 6 | 1 | 1 | | | | | | | | | |
| | P Arraya | 7 | 3 | 4 | | | | | | 1 | T Tulasne | 5 | 4 | | | | | |
| Q | C Pistolesi | 6 | 6 | | | | | | | | P McNamee | 7 | 6 | | | | | |
| WC | V Pecci | 3 | 2 | | Q | C Pistolesi | 4 | 3 | | | | | | | | | | |
| | P McNamee | 6 | 6 | | | P McNamee | 6 | 6 | | | | | | | | | | |
| 8 | J Yzaga | 3 | 3 | | | | | | | | | | | | P McNamee | 4 | 7 | 6 |
| 4 | G Forget | 5 | 6 | 6 | | | | | | | | | | Q | J Arrese | 6 | 6 | 4 |
| | L Duncan | 7 | 4 | 2 | 4 | G Forget | 6 | 0 | 1 | | | | | | | | | |
| Q | F Segărceanu | 6 | 7 | | Q | F Segărceanu | 4 | 6 | 6 | | | | | | | | | |
| | R Agénor | 2 | 6 | | | | | | | Q | F Segărceanu | 3 | 1 | | | | | |
| Q | J Arrese | 7 | 6 | | | | | | | Q | J Arrese | 6 | 6 | | | | | |
| | M Ingaramo | 6 | 0 | | Q | J Arrese | 6 | 7 | | | | | | | | | | |
| WC | T Champion | 4 | 0 | | 5 | A Maurer | 2 | 6 | | | | | | | | | | |
| 5 | A Maurer | 6 | 6 | | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | P Lundgren | 2 | 3 | | | | | | | | | | | | | | | |
| WC | T Benhabiles | 6 | 6 | | WC | T Benhabiles | 1 | 6 | 6 | | | | | | | | | |
| Q | F Luna | 1 | 6 | 3 | | F Cancellotti | 6 | 2 | 4 | | | | | | | | | |
| | F Cancellotti | 6 | 3 | 6 | | | | | | WC | T Benhabiles | 2 | 0 | | | | | |
| | M Woodforde | 6 | 7 | | | | | | | | E Sánchez | 6 | 6 | | | | | |
| SE | J López-Maeso | 4 | 6 | | | M Woodforde | 2 | 3 | | | | | | | | | | |
| | E Sánchez | 6 | 4 | 6 | | E Sánchez | 6 | 6 | | | | | | | | | | |
| 3 | M Pernfors | 3 | 6 | 4 | | | | | | | | | | | | E Sánchez | 7 | 6 |
| 7 | S Casal | 6 | 6 | | | | | | | | | | | | 7 | S Casal | 5 | 2 |
| | M Schapers | 4 | 4 | | 7 | S Casal | 6 | 6 | | | | | | | | | | |
| | R Argüello | 6 | 6 | | | R Argüello | 1 | 2 | | | | | | | | | | |
| | J Brown | 1 | 4 | | | | | | | 7 | S Casal | 6 | 2 | 6 | | | | |
| | M Vajda | 7 | 6 | | | | | | | | M Vajda | 4 | 6 | 2 | | | | |
| | J Aguilera | 5 | 2 | | | M Vajda | 7 | 3 | 7 | | | | | | | | | |
| SE | H de la Peña | 7 | 6 | | SE | H de la Peña | 5 | 6 | 5 | | | | | | | | | |
| 2 | M Jaite | 5 | 3 | | | | | | | | | | | | | | | |