Harrington Covered Bridge is a historic covered road bridge in Conneaut Township, Erie County, Pennsylvania, carrying Barney Road over Conneaut Creek. Built around 1870 by William Sherman, it is a 72-foot single-span multiple King post-truss bridge, a traditional timber form used for small rural crossings. Enclosed with unpainted vertical wooden plank siding, it shares features with the nearby Gudgeonville and Carman covered bridges also built by Sherman. Rebuilt in 1962, it continued in use while keeping its historic character. As one of only two covered bridges still remaining in Erie County, its rarity led to its listing on the National Register of Historic Places on September 18, 1980.