Lake Sysmä () is a medium-sized lake in the Vuoksi main catchment area, in the Northern Karelia region of eastern Finland. It is situated in the municipality of Ilomantsi.Sysmä in Järviwiki Web Service. Finnish Environment Institute. Retrieved 2014-03-09.

The largest islands are Lammassaari, Korpisaari, Veitsisaari and Kokkosaari.

Sysmä is also the name of a municipality in the Päijänne Tavastia region,Sysmä-lakes in Järviwiki Web Service. Retrieved 2014-03-09. and Sysmä is also a lake in Joroinen.

See also List of lakes in Finland

References