Pychgynmygytgyn (Russian: Пычгынмыгытгын or Пичхинмыитхын; Chukot: Пэчгэнмыгытгын) is a freshwater lake in Providensky District, Chukotka Autonomous Okrug, Russian Federation.

The nearest inhabited place is Nutepelmen, located 97 km (60 mi) to the NNE.

"[3] Pychgynmygytgyn is located in the Chukotka Peninsula, 55 km (34 mi) southwest of Kolyuchin Bay.

It is a V-shaped lake that lies in a wide intermontane basin of the central part of the Chukotka Mountains.

[1] The lake freezes in the first half of September and stays under ice until June.