Tama-ku (多摩区) is one of the seven wards of the city of Kawasaki in Kanagawa Prefecture, Japan.

Tama Ward is located in eastern Kanagawa Prefecture, in the far northeastern corner of the city of Kawasaki, bordering on Tokyo.

Archaeologists have found kofun along the banks of the Tama River and at other locations in the Ward.

Tama Ward is largely a regional commercial center and bedroom community for central Kawasaki and Tokyo.

Several factories producing chemical, glass, and electronics are located in the ward, and there is some residual agriculture (primarily horticulture and market vegetables).