Thika (pronounced [ˈθika]) is an industrial town and a major commerce hub in Kiambu County, Kenya, lying on the A2 road 42 kilometres (26 mi), Northeast of Nairobi, near the confluence of the Thika and Chania Rivers. Thika is home to the Chania Falls, Fourteen Falls on the Athi River and the Thika Falls.
The town was the headquarters of Thika West district following the split of the larger Thika district (created in 1994) into five districts: Thika East and Thika West, Ruiru, Gatundu and Gatanga.