East Butler
- County:
- Butler County
- County Seat:
- No
- Area (mi²):
- 1.043
- State:
- Pennsylvania
East Butler is a borough located in Butler County, Pennsylvania. East Butler has a 2026 population of 736. East Butler is currently declining at a rate of -0.81% annually and its population has decreased by -3.54% since the most recent census, which recorded a population of 763 in 2020.