Wau County is a county in Western Bahr el Ghazal state, in the Bahr el Ghazal region of South Sudan.

The seat of Wau County is the third most populous city in South Sudan.

Wau County is in the Northwest region of South Sudan, and is in the middle of Western Bahr el Ghazal.

As of 2013, ethnic groups reported in Wau County were Balanda, Azande, Bongo, Gollo, Ndogo, and Bai.

This South Sudan location article is a stub.