Lake Võrtsjärv is a lake in southern Estonia with an area of 270 km² (104 mi²).
It is the second largest lake of Estonia behind Lake Peipus. The shallow lake is 33.7 m (111 ft) above sea level. The river Emajõgi flows from Lake Võrtsjärv to Lake Peipus.
vaatetorn.jpg|Jõesuu watchtower on the northern shore of Lake Võrtsjärv rand.jpg|"The shore of Võrtsjärv" by Konrad Mägi. Oil on canvas. 1917 outcrop