Crvenjak Lake (Bosnian: Crvenjakjezero) is a small glacial lake in Bosnia and Herzegovina.

It is located on the Čvrsnica mountain, which is part of wider Blidinje plateau.

The lake is oval-shaped, approximately 70 meters long and 50 meters wide.

It has a depth of approximately 9 meters.

[1] This Herzegovina-Neretva Canton geography article is a stub.