Dick DeGuerin is a Texas criminal defense attorney. DeGuerin was admitted to the State Bar in 1965. Early in his career , he was an associate with Percy Foreman.

As of December, 2005, he is representing former House Majority Leader Tom DeLay in DeLay's defense against indictments for money laundering and conspiracy, brought by Texas prosecutor Ronnie Earle. DeGuerin, himself a Democrat, previously prevailed over Earle in a case involving misconduct charges against Kay Bailey Hutchison.