Marrella may refer to:
- Marrella, an ancient arthropod
- Fabrizio Marrella, a professor of international law
Marela may refer to:
- Marela (town), a town and sub-prefecture in Guinea
- Marela (butterfly), a genus of butterflies of the Eudaminae subfamily, found in South America
- Briana Marela, American musician
Marella may refer to:
- Marella Agnelli (born 1927), Italian fashion and style icon
- Marella Mamoun (born 1982), Syrian swimmer
- Michel Marella (born 1946), French footballer
- Joey Marella (1963–1994), American wrestling referee
- Paolo Marella (1895–1984), Italian cardinal
- Olinto Marella (1882–1969), Italian Roman Catholic priest
- Robert Marella (1937–1999), American wrestler
- Santino Marella (born 1979), Canadian wrestler
- Marella Redek, a character in the teen novel series Keeper of the Lost Cities by Shannon Messenger
- Marella Salamat (born 1993/1994), Filipina cyclist