| Flag Image: | Flag of San Juan, Puerto Rico.svg |
| Country: | Puerto Rico |
| Type: | presidential |
| Previous Election: | 1972 San Juan, Puerto Rico, mayoral election |
| Previous Year: | 1972 |
| Next Election: | 1980 San Juan, Puerto Rico, mayoral election |
| Next Year: | 1980 |
| Election Date: | November 2, 1976 |
| Nominee1: | Hernán Padilla |
| Party1: | New Progressive Party (Puerto Rico) |
| Popular Vote1: | 117,982 |
| Percentage1: | 52.95% |
| Nominee2: | José Enrique Arrarás |
| Party2: | Popular Democratic Party (Puerto Rico) |
| Popular Vote2: | 89,268 |
| Percentage2: | 40.06% |
| Nominee3: | Roberto Aponte Toro |
| Party3: | Puerto Rican Independence Party |
| Popular Vote3: | 12,768 |
| Percentage3: | 5.73% |
| Mayor | |
| Before Election: | Carlos Romero Barceló |
| Before Party: | New Progressive Party (Puerto Rico) |
| After Election: | Hernán Padilla |
| After Party: | New Progressive Party (Puerto Rico) |
San Juan, Puerto Rico, held an election for mayor on November 2, 1976. It was held as part of the 1976 Puerto Rican general election. It saw the election of Hernán Padilla, a member of the New Progressive Party.
Incumbent mayor Carlos Romero Barceló, a member of the New Progressive Party, did not seek reelection, and instead ran for governor.