Košrags (Livonian: Kuoštrõg) is a small village in Kolka Parish, Talsi Municipality, Latvia.

The "Kukiņi" homestead located in Košrags was first mentioned in 1680 chronicles.

Košrags is one of the newest of Liv villages, formed in the 17th century.

By 1770 four old farms operated in Košrags (Kine-Dīķi, Kūkiņi, Tilmači and Žoki).

Livonian priest and ethnologist Edgar Vaalgamaa was born in Košrags.