The MS-06S Zaku II Commander Type (aka MS-06S Zaku II, MS-06S, S Type) is a mobile suit introduced in Mobile Suit Gundam. One such unit was famously piloted by Char Aznable.

Developed in response to veteran pilots' request for a high performance unit, the MS-06S Zaku II Commander Type was far more mobile than its predecessor, the MS-06F Zaku II, but was also far more difficult to control. Compared to the F Type, the S Type's vernier nozzles were enlarged, and the output of its main thrusters were increased by 30% while retaining the same size. To make space for the improved thrusters and enlarged propellant tanks, various automatic control systems of the F Type were removed. While this reduced S Type's operability, it also enabled experienced pilots to disable many unnecessary limiters and push the mobile suit to its structural limit.Other changes from the F Type included the S Type's generator being 5% lighter, and its armor composition and structure were improved, improving its overall power-weight ratio. Finally, the S Type were all equipped with a head-mounted multi-blade antenna. Though the antenna itself was identical to those found on the F Type, the structure at its base was different, giving it improved communications and enemy detection capabilities. Despite having many special internal components, the S Type still shared 80-90% of its parts with the F Type, making it easy to resupply and maintain. This also meant that like the F Type, it could easily be modified to operate in space or under gravity.