Martini may refer to:
- Martini (cocktail), a drink made with gin and vermouth, garnished with an olive or a lemon twist
- Martini (vermouth), a brand of vermouth
- Martini (surname), an Italian surname
- Martini (automobile company), a Swiss automobile company
- Automobiles Martini, a French manufacturer of racing cars
- Martini Racing, motor racing teams sponsored by Martini & Rossi
- Martini (quartet), the 2012 Sweet Adelines International champion quartet
- MARTINI, a molecular dynamics force field in chemistry
- Mārtiņi, a Latvian holiday
- Martini–Henry, a rifle
- Embajador Martini, an Argentine village in Realicó Department, La Pampa