The MS-06 Zaku II (ザク II?) is a line of mobile suits introduced in the Mobile Suit Gundam television series.

The successor to the first fielded MS, the MS-05 Zaku I, the Zaku II improved on everything the previous model offered. It was faster, more durable, had a superior reactor, and could be fitted with more weapons. The Zaku II was the mainstay of the Zeon military for most of the One Year War. Even after the MS-09B Dom and MS-09R Rick Dom began to replace it on the front lines, the Zaku II still remained the most numerous mobile suit in Zeon's armed forces. As such, the Zaku II formed the backbone of the Zeon remnants behind Operation Stardust and some were even seen as late as U.C. 0088 in both AEUG and Neo Zeon service during the Gryps Conflict and the First Neo Zeon War. The Zaku II was also a common aggressor unit used during training for Earth Federation Forces pilots.