The Huyva (also Houyva or Huyvy) (Ukrainian: Гуйва, Russian: Гуйва) is a river of northern Ukraine, flowing through the territory of Koziatyn Raion of Vinnytsia Oblast and Andrushivka Raion and Zhytomyr Raion of Zhytomyr Oblast. It is a tributary of the Teteriv River.
The river has a length of 97 km and basin area of 1505 km ². The Huyva flows through the cities of Koziatyn and Andrushivka.
The biggest tributaries are: Pustoha, Kodenka.