Taku (多久市, Taku-shi) is a city located in Saga Prefecture on the island of Kyushu, Japan.

Saga Prefecture Taku has a humid subtropical climate (Köppen Cfa) characterized by warm summers and cool winters with light to no snowfall.

Following the Meiji restoration, the villages of Kita-Taku, Taku, Nishi-Taku, Higashi-Taku, and Minami-Taku were established with the creation of the modern municipalities system.

Taku has a mayor-council form of government with a directly elected mayor and a unicameral city council of 15 members.

In terms of national politics, the city is part of the Saga 2nd district of the lower house of the Diet of Japan.