Flag of San Antonio
| Proportion | 5:9 |
|---|---|
| Adopted | August 27, 1992 |
| Design | A vertical bi-color of blue on the left and red on the right, with a large white star in the center, containing a black-outlined Alamo in the middle |
| Designed by | William W. Herring |
The city flag of San Antonio, Texas was originally drawn by Spanish–American War veteran William W. Herring on May 28, 1933. The design saw significantly more usage than the official flag, but was never officially adopted until 1976. The current flag is a slightly modified version of Herring's design, most notably removing the text formerly displayed.