William Templeton Johnson (1877 – 1957) was a notable San Diego architect. He was a fellow to the American Institute of Architects (AIA) in 1939.
Johnson is known for his Spanish Revival buildings, all in San Diego unless otherwise noted:
La Jolla Public Library, now the La Jolla Athenaeum, 1921
Fine Arts Gallery in Balboa Park in 1932, now the San Diego Museum of Art, 1926
La Valencia Hotel, La Jolla, 1926
The San Diego Trust & Savings Bank at Sixth and Broadway, 1928
The Serra Museum in Presidio Park, 1929
three buildings (one extant) for the Ibero-American Exposition of 1929, Seville, Spain
Mabel Shaw Bridges Music Auditorium, Pomona College, Claremont, California
The San Diego Natural History Museum, also in Balboa Park, 1932
The San Diego County Administration Center (with other architects)
