Timothy J. Grendell (born April 17, 1953) is a Republican politician who serves as judge on the Geauga County Court of Common Pleas. He was a member of the Ohio Senate from 2005 to 2011, and of the Ohio House of Representatives from 2000 until 2004. Timothy Grendell was appointed to the Geauga County Court of Common Pleas as the Juvenile and Probate judge in 2011 by then Governor John Kasich after leaving Columbus, OH. After seeking election again, running unopposed in 2020, he is currently Geauga Counties elected judge.