Marcelino is a surname that originated in Spain. There are also several families with the Marcelino surname in Philippines, Portugal, and the Americas (North, Central, and South).
Marcelino is also a first name given in Spanish and Portuguese:
- Marcelino Bernal, (1962) Mexican association footballer (var. Mexican clubs).
- Marcelino Bolivar, (1964) Venezuelan boxer.
- Marcelino Elena, (1971) Spanish association footballer (Gijón, Mallorca).
- Marcelino de Oraá Lecumberri, (1788–1851) Basque Spanish military man and administrator.
- Marcelino López, (1943–2001) Cuban American baseball pitcher.
- Marcelino Menéndez y Pelayo, (1856–1912) Spanish scholar, historian.
- Marcelino Martínez, (1940), is a former Spanish association footballer (Zaragoza).
- Marcelino McCrary-Ball (born 1999), American football player
- Marcelino Paz do Nascimento (1939–2002), Brazilian footballer
- Marcelino dos Santos, (1929–2020) Mozambican poet, revolutionary and vice president.
- Marcelino Teodoro (born 1970), Filipino politician
- Marcelino García Toral, (1965) Spanish association footballer (Gijón, Santander, Levante) and manager (Gijón, Santander, ...)
- Marcelino Libanan, Filipino politician