Farm Island Lake is a lake in the U.S. state of Minnesota, located in Aitkin County north of Mille Lacs Lake.

Zebra mussels, an invasive species, have been found there.

[1] Its name refers to traditional farming of islands in the lake by Ojibwe people.

[2] They also hunted, fished, and harvested wild rice.

The Minnesota Department of Natural Resources maintains Farm Island State Wildlife Management Area and two public boat launches on the lake.