State Route 616 (SR 616) is a north–south state highway in the northeastern portion of the U.S. state of Ohio. The southern terminus of SR 616 is at a signalized intersection with SR 170 immediately south of US 224 in Poland. The northern terminus of the state highway is at a signalized intersection that doubles as the eastern end of the concurrency of US 62, SR 7 and SR 304 in Hubbard.