Kawai (河合町, Kawai-chō) is a town located in Kitakatsuragi District, Nara Prefecture, Japan.

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

Kawai has a mayor-council form of government with a directly elected mayor and a unicameral town council of 12 members.

Kawai, collectively with the other municipalities of Kitakatsuragi District, contributes three members to the Nara Prefectural Assembly.

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