| San Diego Siege | |
| Sport: | Basketball |
| League: | National Women's Basketball League |
| City: | San Diego, California |
| Founded: | 2005 |
| Arena: | Harry West Gymnasium |
| Folded: | 2006 |
| Colors: | red, white and blue |
| Owner: | Patrick Alexander |
| Coach: | Fred Williams |
| Gm: | David McElwee |
The San Diego Siege were a women's professional basketball team based in San Diego, California, that competed in the now defunct National Women's Basketball League (NWBL). The team played only one season, during February and March 2006, finishing the regular season 14-4 and earning the number one playoff seed. They defeated the San Francisco Legacy in the semi-final and lost to the Colorado Chill in the NWBL Championship for a 15-5 record.
|-!colspan=9 style=| Regular season|-!colspan=9 style=| NWBL Playoffs