Tizi Ouzou (Kabyle: Tawilayt n Tizi Wezzu, Arabic: ولاية تيزي وزو) is a province (wilayah) of Algeria in the Kabylia region.

Its capital is Tizi Ouzou, with a popoluation of 1.198.561 inhabitants in 2019, with a density of 405/square kilometers.

In 1984, Boumerdès Province was carved out of its territory.

The province is divided into 21 districts (daïras), which are further divided into 67 communes or municipalities.