The Battle of Santo Tomas was fought on May 4, 1899, in Santo Tomas, Pampanga, during the Philippine-American War. During this battle, General Antonio Luna, the commander of the Filipino forces, was wounded. The Battle of Santo Tomas followed the Battle of Calumpit, wherein Luna's main force had fought that of General Arthur MacArthur, Jr. The battle resulted in a defeat of the Filipino forces around Santo Tomas and their withdrawal from the town.