Zab or ZAB may refer to:
Geography The Zab rivers: Great Zab, or Upper Zab, river tributary to the Tigris Little Zab, or Lower Zab, river tributary to the Tigris Al Zab, an Iraqi town at the confluence of the Little Zab with the Tigris M'zab, a region in Algeria Zab Emirate, a 15th century Algerian state Zweibrücken Air Base (ZAB), a former air base in West Germany Ząb, a village in Poland
History Battle of the Zab, by the Great Zab in 750
People Zab Judah, American professional boxer Zab Maboungou, Franco-Congolese writer and choreographer
Abbreviations zab, the ISO 639-3 code for the San Juan Guelavía Zapotec language RU-ZAB, the ISO 3166-2 code for Zabaykalsky Krai Albuquerque Air Route Traffic Control Center, New Mexico, US, known as ZAB Zookeeper Atomic Broadcast, a consensus protocol used in Apache ZooKeeper