San Leonardo is a 2nd class municipality in the province of Nueva Ecija, Philippines. According to the latest census, it has a population of 54,596 people in 10,068 households.

San Leonardo is located between Gapan City and Santa Rosa. It is a two to three hour bus ride from Manila. The area has a farming economy. San Leonardo has vast rice fields and land for growing vegetables and poultry products.

Barangays

San Leonardo is politically subdivided into 15 barangays.

* Mallorca
* Bonifacio (Población)
* San Bartolomé (Población)
* Burgos (Población)
* Rizal (Población)
* Mambangnan
* Nieves
* Castellano
* San Roque
* San Anton
* Tambo-Adorable
* Magpapalayok
* Tabuating
* Tagumpay
* Diversion