Lake Turner (German: Turnersee; Slovene: Zablaško jezero) is a lake in the municipality of Sankt Kanzian in Carinthia, Austria.

The lake lies together with Gösselsdorfer See on the Rückersdorfer's plate.

On the shores of Lake Turner grow various flowers, such as Primula farinosa, Menyanthes, Epipactis palustris.

Various species of fish are found in the lake, such as Percidae, Wels catfish, Northern pike, Tench and Astacus astacus.

Among bird species you can see Western yellow wagtail, European stonechat and Northern lapwing.