Martinez Lake is a lake in the southwestern corner of the U.S. state of Arizona, about 60 miles north of Yuma, Arizona on the Lower Colorado River. Its area is about 300 to 500 acres (120 to 200 ha), depending upon where its boundary with the Colorado River is taken to be.^{[citation needed]} The community of Martinez Lake, Arizona is located on the lake.

Martinez Lake
Martinez Lake Show map of Arizona Martinez Lake Show map of the United States
Location	Yuma County, Arizona
Coordinates	32°58′59″N 114°28′34″W / 32.98306°N 114.47611°W / 32.98306; -114.47611
Primary inflows	Lower Colorado River
Primary outflows	Lower Colorado River
Basin countries	United States