Renovo is a borough in Clinton County, Pennsylvania, United States, 28 miles (45 km) northwest of Lock Haven. In 1900, 4,082 people lived there, and in 1910, 4,621 lived there, but in the 2010 census the borough population was 1,228.

The borough is located on the West Branch Susquehanna River, and along Pennsylvania’s Bucktail State Park Natural Area, centered upon Pennsylvania Route 120, which winds through the surrounding mountains later than the river. The town is the home of the “Flaming Foliage Festival” held each October, generally upon the second weekend, celebrating the slip colors of the trees upon the area’s many mountains. The festival includes a parade and the crowning of a queen, usually prearranged from one of the nearby tall schools. The festival serves as a “homecoming” event for former residents of Renovo, many of whom return annually for the event. Various vendors from the surrounding areas sell food, clothing, and an array of novelties, memorabilia, and souvenirs.

The economy of Renovo and the surrounding area was primarily based on lumbering, until the first-growth tree-plant was all but entirely stripped away, and the industry collapsed. There are afterward deposits of bituminous coal and flame clay in the region.

Renovo was built for and by the Philadelphia & Erie Railroad as the midpoint amongst Philadelphia and Erie. The town was laid out on a mostly-flat flood plain along the West Branch of the Susquehanna River in North-Central Pennsylvania, and was incorporated in 1866. Many of the buildings of what became the sprawling Railroad Shops profound were built before, during, and after the American Civil War.