State Route 607 (SR 607) is a north–south highway near McConnelsville, Ohio. The route starts at SR 60 and travels north to its terminus at SR 78, all located inside Morgan County. SR 607 was designated in 2011, after Monastery Road was transferred from township-maintenance to state-maintenance. The road was then repaved and realigned in 2012, and became signed on July 25, 2013. The route opened to the public on the next day.