Mark Shepherd was an American fantasy novelist and musician.
Born in 1961 in Tampa, Florida, during the 1990s Shepherd was a writing protégé and live-in personal secretary of author Mercedes Lackey and artist Larry Dixon at Highflight, their Tulsa, Oklahoma residence.
He co-authored two novels with Lackey, and composed music to accompany his later books. He has also written several short stories.
Shepherd's secretarial duties at Highflight were taken over by Englishman Paul Fisher in 2000.
He committed suicide by shooting himself on May 24, 2011.