Zelenyi Yar (Ukrainian: Зелений Яр, German: Landestreu) is a village (selo) in Kalush Raion, Ivano-Frankivsk Oblast, in west Ukraine.

The local filial Lutheran church belonged to the parish of Ugartsthal.

In the late 1930s the name was changed to Mazurówka.

In January 1940 the local German population was moved out (Heim ins Reich), later replaced by Ukrainians.

This article about a location in Ivano-Frankivsk Oblast is a stub.