Martello can refer these people:
- Alan Martello, born 14 September 1952 is a former Australian rules football player
- Cesar Martello, politician in Ontario
- Alfonse Martello D'Amato, New York politician
- Charles Martel d'Anjou, 13th century titular king of Hungary
- Leo Martello, pagan
Martello can also refer to:
- a Napoleonic War defensive structure, the Martello tower, in Britain, Ireland, Canada and other countries
- a type of British air defence radar
- Il Caso Martello, 1992 Italian film
- the Italian name for Martell, a municipality in the province of South Tyrol, Italy
- a roundhouse kick in Capoeira
- a Bressingham Steam and Gardens owned A1 class locomotive, built for the London,Brighton and South Coast Railway 0-6-0T no.662 Martello