The Butler County Courthouse is a government building of Butler County located in the county seat, Butler, Pennsylvania. The current structure is the third courthouse to have been built for the county. The original courthouse, built in 1807, was a small structure made of stone. , who was responsible for the construction of Old Main at Geneva College became the architect of the new courthouse after the second one was destroyed by a fire in 1883. It was built in 1885, and is a three-story, brick and sandstone building in an interpretation of the High Victorian Gothic style. It features a large central, four-faced clock tower with two double pyramid shaped roofs.