| Mustapha Boukar | |
| Fullname: | Mustapha Boukar |
| Birth Date: | 2 November 1962 |
| Birth Place: | Oran, Algeria |
| Position: | Midfielder |
| Youthyears1: | 1977–1980 |
| Youthclubs1: | MC Oran |
| Years1: | 1980–1982 |
| Caps1: | – |
| Goals1: | – |
| Years2: | 1982–1990 |
| Caps2: | – |
| Goals2: | – |
| Years3: | 1990–1993 |
| Clubs3: | KVK Westhoek |
| Caps3: | – |
| Goals3: | – |
| Years4: | 1993–1995 |
| Clubs4: | Eendracht Wervik |
| Caps4: | – |
| Goals4: | – |
| Years5: | 1995–1997 |
| Caps5: | – |
| Goals5: | – |
| Nationalyears1: | 1985–1988 |
| Nationalcaps1: | 8 |
| Nationalgoals1: | 2 |
| Nationalyears2: | 1989 |
| Nationalteam2: | Algeria futsal |
| Nationalcaps2: | 3 |
| Nationalgoals2: | 0 |
Mustapha Boukar (Arabic: مصطفى بوكار; born 2 November 1962) is an Algerian former footballer who famously played as a number 10 for ASM Oran, the club of the town where he was born. He was nicknamed Paulo César referring to the Brazilian player of the 1970s who was also known as Caju. Boukar played in Belgium between 1991 and 1993.