Richard Greenleaf Trefry (born August 6, 1924) is a retired lieutenant general in the United States Army.
He last assignment was Inspector General of the Army.
In 1990, he was appointed as Military Assistant to the President and Director of the White House Military Office.
In 1995, Trefry served on the Board of Directors of American Military University and currently serves on the Board of Trustees of the American Public University System as a member and committee chair.