| Official Name: | Košrags |
| Native Name: | Livonian Kuoštrõg |
| Settlement Type: | Village |
| Pushpin Map: | Latvia |
| Pushpin Map Caption: | Location in Latvia |
| Subdivision Type: | Country |
| Subdivision Type1: | Municipality |
| Subdivision Name1: | Talsi Municipality |
| Subdivision Type2: | Parish |
| Subdivision Name2: | Kolka Parish |
| Established Title: | First mentioned |
| Established Date: | 1680 |
| Unit Pref: | Imperial |
| Population As Of: | 2005 |
| Population Total: | 13 |
| Timezone: | EET |
| Utc Offset: | +2 |
| Timezone Dst: | EEST |
| Utc Offset Dst: | +3 |
| Coordinates: | 57.7°N 44°W |
| Elevation M: | 5 |
| Postal Code Type: | Postal code |
| Postal Code: | LV-3275 Kolka |
Košrags (Livonian: Kuoštrõg) is a small village in Kolka Parish, Talsi Municipality, Latvia on the shore of the Irbe Strait of the Baltic Sea.It is one of twelve Livonian villages on Līvõd rānda - the Livonian Coast.
The "Kukiņi" homestead located in Košrags was mentioned in 1680 chronicles for the first time. Košrags is considered as one of the newest of the Liv villages, as it was formed in the 17th century. By 1770 there were four old farms in Košrags (Kine-Dīķi, Kūkiņi, Tilmači and Žoki). Two tenant-farmer habitations existed in 1896, and another seven habitations after 1905.
The houses in the village were built rather densely along the two roads:
These roads have preserved their ancient shape till the present day.
Livonian priest and ethnologist Edgar Vaalgamaa was born in Košrags.