The Kamchatka leaf warbler (Phylloscopus examinandus) is a species of leaf warbler (family Phylloscopidae). It was formerly included in the "Old World warbler" assemblage. It is closely related to the Arctic warbler and the Japanese leaf warbler, to which it was formerly considered conspecific.It is found in Kamchatka, Sakhalin, Hokkaido and the Kurile Islands.