Zaku is the name of many different Mobile Suits:
- Universal Century Mobile Suits
- MS-05 Zaku I, the first ever mass-production Mobile Suit
- MS-06 Zaku II, a mainstay of Principality of Zeon forces throughout the One Year War
- MS-11 Act Zaku, a late-war, limited-production Principality model that was intended to succeed the Zaku II
- Perfect Zaku, an experimental model manufactured by Zeon Remnants that was designed to be piloted by a Newtype
- AMX-011 Zaku III, a model manufactured by Axis Zeon
- AMX-116 Zaku IV, a model manufactured by Newborn Neo Zeon
- OMS-06RF RF Zaku, a model manufactured by Mars Zeon
- MS-50A Zaku 50, a model produced by Anaheim Electronics to commemorate the 50th anniversary of the end of the One Year War
- Cosmic Era Mobile Suits
- ZAFT Armed Keeper of Unity, the primary model series used by ZAFT during the Second Alliance-PLANT War