Ewing Field was a baseball park in San Francisco, California. It served as the home of the San Francisco Seals of the Pacific Coast League for a single season, 1914.
Ewing Field was located in the Richmond District of the city, bounded by Masonic Avenue (east, third base); St. Rose's Avenue (now Anza Street, north, first base) and Geary Boulevard (a block north of St. Rose / Anza); Presentation Convent and Turk Boulevard (south, left field); and Lone Mountain (west, right field).