Palokkajärvi (Finnish pronunciation: [ˈpɑ̝lo̞kːɑ̝ˌjærʋi]) is a lake in Jyväskylä, Finland, covering an area of 253.68 hectares (626.9 acres).

The district of Mannila is located to its west, however, its buildings are separated from the lake by the national road 4, the longest highway in the country.

[3] Three rivers discharge into the Palokkajärvi: Pappilanjoki from Alvajärvi in the north, Löylyjoki from Tuomiojärvi in the west and Karjujoki from Tyyppälänjärvi through Heinälampi in the east.

Both the flow rate and the lake's level is regulated by a dam at a hydroelectric power plant on the river's upper course.

[9] Until the late 1970s, wastewater from Tikkakoski was directed into the river Autiojoki, causing phosphorus levels to rise further down the watercourse, including Palokkajärvi.