塞凡湖鳟，为辐鳍鱼纲鲑形目鲑科的一种。

本鱼仅分布于亚美尼亚塞凡湖。

The Sevan trout (Salmo ischchan) is an endemic fish species of Lake Sevan in Armenia, known as ishkhan (իշխան, pronounced [iʃˈχɑn]) in Armenian. It is a salmonid fish related to the brown trout.

The fish is endangered, because various competitors were introduced into the lake during the Soviet period, including common whitefish (Coregonus lavaretus) from Lake Ladoga, goldfish (Carassius auratus) and narrow-clawed crayfish (Astacus leptodactylus); and because of lake level change. On the other hand, the Sevan trout itself has been successfully introduced to Issyk Kul lake in Kyrgyzstan.