Bigler Township is a township in Clearfield County, Pennsylvania, United States. The population was 1,368 at the 2000 census.
According to the United States Census Bureau, the township has a total area of 24.8 square miles (64.2 km²), all of it land.
As of the census of 2000, there were 1,368 people, 547 households, and 386 families residing in the township. The population density was 55.2 people per square mile (21.3/km²). There were 647 housing units at an average density of 26.1/sq mi (10.1/km²). The racial makeup of the township was 99.05% White, 0.07% African American, 0.07% Asian, 0.22% from other races, and 0.58% from two or more races. Hispanic or Latino of any race were 0.15% of the population.