| Gustavo Carrer | |
| Birth Date: | 21 May 1885 |
| Birth Place: | Riva del Garda, Italy |
| Death Place: | Solbiate Olona, Italy |
| Position: | Striker |
| Years1: | 1904–1907 |
| Years2: | 1908–1909 |
| Years3: | 1909–1912 |
| Years4: | 1912–1913 |
| Years5: | 1913–1915 |
| Years6: | 1920–1921 |
| Clubs2: | Milan (B team) |
| Clubs3: | Milan |
| Clubs6: | Pro Sesto |
| Caps1: | 2 |
| Goals1: | 0 |
| Caps2: | 11 |
| Goals2: | ? |
| Caps3: | 38 |
| Goals3: | 6 |
| Caps4: | 6 |
| Goals4: | 0 |
| Caps5: | 11 |
| Goals5: | 4 |
| Nationalyears1: | 1911 |
| Nationalteam1: | Italy |
| Nationalcaps1: | 2 |
| Nationalgoals1: | 1 |
| Manageryears1: | 1919–1920 |
| Manageryears2: | 1926–1927 |
| Managerclubs2: | Como |
Gustavo Carrer (pronounced as /it/; 21 May 1885 – 18 February 1968) was an Italian professional football player and manager who played as a forward.
He made his debut for the Italy national football team on 7 May 1911, scoring a goal in a 2–2 home draw against Switzerland. He collected another appearance for Italy against the same opponent later that year.