Harris Field comprises a baseball diamond, a playground and a basketball court. The Malverne Little League uses this park as its home playing field for many baseball and softball games. During league games, volunteers operate Mike and Sparky's Place, a refreshment stand located near the baseball diamond.
The field is named after William Harris, who served as mayor of the village of Malverne in the 1940s during WWII. Harris was known for creating the Malverne War Council and encouraging support of the U.S.O. and Red Cross, and when the war ended, he focused on improving recreational facilities in the village.