Louis Guisto Field is a baseball venue in Moraga, California, United States.

It was home to the Saint Mary's Gaels college baseball team of the NCAA Division I West Coast Conference from 1928 to 2011.

Named for former Gaels baseball player and coach Louis Guisto,[1] the field has a capacity of 1,000 spectators.

[5] In 2011, construction began on a new on-campus Gaels baseball venue.

[3] The new facility stands beyond the right field fence of the old venue, which is slated to be demolished.