Joseph J. O'Donnell Field is a baseball venue in Boston, Massachusetts, United States. It is home to the Harvard Crimson baseball team of Harvard University. Formerly known as Soldier's Field, the location has been home to Harvard baseball since 1898. The venue is named for Joseph J. O'Donnell, a Harvard alumnus who played baseball and football while attending the school. It has a capacity of 1,600 spectators.