Mark Coyne (born November 19, 1962) is an American musician and one of the original members of the rock band the Flaming Lips. Coyne co-founded the group along with his brother Wayne in Norman, Oklahoma, in 1983.^[1] The original lineup of the Flaming Lips was Mark on lead vocals, Wayne on guitar, and Michael Ivins on bass. Mark left the band in 1985 (shortly after their self-titled debut EP was released) around the time of his wedding.^[2] Upon Mark's departure, Wayne assumed lead vocalist and songwriting duties.^[1]

Some of the 1985 demos that Mark sang on were released as a part of the Finally the Punk Rockers Are Taking Acid compilation.^{[citation needed]}