A merman is a half-man/half-fish from mythology.
Merman may also refer to: Music "Merman", a song by Tori Amos from the benefit album No Boundaries: A Benefit for the Kosovar Refugees Merman (album), a 1996 album by Emilíana Torrini
People Ethel Merman (1908–1984), American actress and singer Varla Jean Merman, American drag queen
Other uses Mer-Man, a character from the Masters of the Universe toy line "The Merman", a 1938 short story by L. Sprague de Camp Merman (company), a production company owned by Sharon Horgan Merman (horse), a racehorse