Gabaldon (formerly Sabani and Bitulok) is a 4th class municipality in the province of Nueva Ecija, Philippines. According to the latest census, it has a population of 29,619 people in 6,038 households.
The town is tucked by the Sierra Madre Mountains. It lies 171 kilometers northeast of Manila, the capital of the Philippines. Tagalogs predominate this town. It is bounded by Bongabon on the north, Laur on the west, General Tinio on the south, and Dingalan by the east. There is only one road passing through this town. The road up to barangay Sawmill is concreted but the remaining two barangay before Dingalan town is not.
It was created by virtue of Republic Act 496 from its mother town of Laur. Through Republic Act 1318, its name was changed from Sabani to Gabaldon.