| Flag Image: | Flag of San Juan, Puerto Rico.svg |
| Country: | Puerto Rico |
| Type: | presidential |
| Previous Election: | 2012 San Juan, Puerto Rico, mayoral election |
| Previous Year: | 2012 |
| Next Election: | 2020 San Juan, Puerto Rico, mayoral election |
| Next Year: | 2020 |
| Election Date: | November 8, 2016 |
| Image1: | Carmenyulin (1).jpg |
| Nominee1: | Carmen Yulín Cruz |
| Party1: | Popular Democratic Party (Puerto Rico) |
| Popular Vote1: | 78,509 |
| Percentage1: | 52.56% |
| Nominee2: | Leo Díaz Urbina |
| Party2: | New Progressive Party (Puerto Rico) |
| Popular Vote2: | 65,345 |
| Percentage2: | 43.75% |
| Mayor | |
| Before Election: | Carmen Yulín Cruz |
| Before Party: | Popular Democratic Party (Puerto Rico) |
| After Election: | Carmen Yulín Cruz |
| After Party: | Popular Democratic Party (Puerto Rico) |
San Juan, Puerto Rico, held an election for mayor on November 8, 2016. Among other elections, it was held concurrently with the 2016 Puerto Rico gubernatorial election. It saw the reelection of Carmen Yulín Cruz, a member of the Popular Democratic Party.