Lena Lake may refer to:
Lena Lake (Kenora District), Ontario Lena Lake (Muskoka District), Ontario Lena Lake (Nipissing District), Ontario Lena Lake (Algoma District), Ontario Lena Lake (Thunder Bay District), Ontario Lena Lake (Glacier County, Montana), in Glacier National Park (U.S.) Lena Lake (Missoula County, Montana) Lena Lake (Powell County, Montana) Lena Lake (Olympic National Forest)