Fredericksburg is a census-designated place (CDP) in Crawford County, Pennsylvania, United States.

Fredericksburg is located near the center of Crawford County at 41°38′34″N 80°10′12″W / 41.642798°N 80.169996°W / 41.642798; -80.169996,[2] in northeastern Vernon Township.

It is bordered to the east by the city of Meadville, the county seat, and to the south by the Kerrtown CDP.

French Creek, a tributary of the Allegheny River, forms part of the boundary with Meadville.

According to the United States Census Bureau, the Fredericksburg CDP has a total area of 1.7 square miles (4.5 km2), all land.