Trimbleville, Pennsylvania, also known as Trimble's Ford and the Trimbleville Historic District is a hamlet of roughly six homes that is located in southern Chester County, Pennsylvania, approximately two miles south of Marshallton.

Trimble first bought land in the area on the banks of the west branch of the Brandywine River in 1744; his descendants lived in the community until 1948.

During the Battle of Brandywine on September 11, 1777, more than twelve thousand British troops under Generals William Howe and Charles Cornwallis crossed the west branch of the Brandywine at Trimble's Ford. The troops began the flanking maneuver in Kennett Square, made their first crossing at Trimble's Ford, then crossed the east branch at Jefferis Ford, before engaging the American troops near Birmingham Friends Meetinghouse.

Several buildings survive from the eighteenth century, including include the Trimble farmhouse, a mill, blacksmith and wheelwright shops, and a boarding school. The area was listed by the National Register of Historic Places as an historic district in 1985.