Mabitac was an excellent hunting ground for wild game three centuries ago. Native hunters used numerous cave-ins or trap-ins called "bitag" in the local dialect. Hence, the place was referred to as "Mabitag" meaning "a place with many traps".
The first Spaniards who came to this place were the friars who established the first Spanish settlement in the area and began to Christianize the local population. The Spaniards, having difficulty in pronouncing the "G" consonant, called this place "Mabitac" whenever they mentioned this place. Eventually, the name found its way in the official records and maps of Laguna made by Spanish cartographers and mariners who chartered the coastal areas of Laguna de Bay.
This town was formerly a barrio of Siniloan, an immediate neighboring town. It became an independent municipality only in the year 1611, not by legislation, but by mutual agreement by and between the Spanish friars of both towns who were then the influential ruling class.
In 1942, Japanese soldiers entered and occupied Mabitac. In 1945, the Philippine Commonwealth Army troops of the 4th, 41st, 42nd and 43rd Infantry Division and 4th Infantry Regiment of the Philippine Constabulary together with the recognized guerrillas defeated the Japanese Imperial forces during the Second Battle of Mabitac.