| Election Name: | 1911 San Diego mayoral election |
| Flag Image: | Flag of San Diego, California.svg |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1909 San Diego mayoral election |
| Previous Year: | 1909 |
| Next Election: | 1913 San Diego mayoral election |
| Next Year: | 1913 |
| Nominee1: | James E. Wadham |
| Party1: | Democratic Party (US) |
| Popular Vote1: | 3,112 |
| Percentage1: | 54.3% |
| Nominee2: | Grant Conard |
| Party2: | Republican Party (US) |
| Popular Vote2: | 2,617 |
| Percentage2: | 45.7% |
| Mayor | |
| Before Election: | Grant Conard |
| Before Party: | Republican Party (US) |
| After Election: | James E. Wadham |
| After Party: | Democratic Party (US) |
The 1911 San Diego mayoral election was held on April 4, 1911 to elect the mayor for San Diego. Incumbent Mayor Grant Conard and James E. Wadham received the most votes in the primary election and advanced to the runoff. Wadham was then elected mayor with a majority of the votes.
Incumbent Mayor Grant Conard, a Republican, stood for reelection on a non-partisan ticket. Conard's reelection was challenged by James E. Wadham, a Democrat. Also contesting the race was G.W. Miner, a Socialist.[1]
On March 21, 1911, Conard and Wadham received the two highest vote totals in the primary and advanced to the general election. Wadham was then elected mayor on April 4, 1911 with a majority of the votes in the runoff.[2]