Lake Sukhodolskoye (Russian: Суходольское озеро; Finnish: Suvanto-järvi) is a narrow 40 km long lake on the Karelian Isthmus located in Priozersky District of Leningrad Oblast, Russia.
Originally waters of the lake flowed into the Vuoksi through a waterway at Kiviniemi.
In 1857 a channel was dug there, but the stream reversed direction, revealed rapids and rendered navigation at Kiviniemi impossible.
Since 1857 Lake Sukhodolskoye and Burnaya River have constituted the southern armlet of Vuoksi River, which has decreased the level of the original northern armlet flowing through Priozersk by 4 m. In the late 19th and early 20th centuries, stray finds of Stone Age artifacts were found on the shores of the lake.
Due to the large number of stone tools found in one place, it is believed that they were deposited there deliberately, as seen at other Stone Age sites in northern Europe and Russia.