There are at least 18 cities named San Diego in the entire world. The following map and table contain general information about these cities.
| # | Country | Region | City | Coordinates |
|---|---|---|---|---|
| 1 | United States | California | San Diego | 32.716, -117.165 |
| 2 | Mexico | Sinaloa | San Diego | 24.383, -107.331 |
| 3 | Mexico | Guanajuato | San Diego | 20.888, -101.41 |
| 4 | Mexico | San Luis Potosí | San Diego | 21.917, -100.101 |
| 5 | Mexico | Morelos | San Diego | 19.008, -99.654 |
| 6 | Mexico | México | San Diego | 18.973, -99.585 |
| 7 | United States | Texas | San Diego | 27.764, -98.239 |
| 8 | Mexico | Veracruz | San Diego | 21.147, -98.191 |
| 9 | Mexico | Puebla | San Diego | 19.857, -97.361 |
| 10 | Mexico | Chiapas | San Diego | 16.113, -91.962 |
| 11 | Guatemala | Zacapa | San Diego | 14.79, -89.776 |
| 12 | Mexico | Quintana Roo | San Diego | 19.845, -88.729 |
| 13 | Honduras | El Paraíso Department | San Diego | 14.05, -86.467 |
| 14 | Costa Rica | Cartago Province | San Diego | 9.9, -84.002 |
| 15 | Colombia | Cesar Department | San Diego | 10.336, -73.182 |
| 16 | Venezuela | Carabobo | San Diego | 10.261, -67.954 |
| 17 | Spain | Madrid | San Diego | 40.39, -3.668 |
| 18 | Philippines | Calabarzon | San Diego | 14.042, 120.626 |