Ishtakhaba (Dakota:: Ištáȟba), also known as Chief Sleepy Eyes, was a Native American chief of the Sisseton Dakota tribe. He became chief sometime between 1822 and 1825, receiving a commission from the Bureau of Indian Affairs as chief in 1824,and remained chief until his death in 1860. His band, known as the Swan Lake or Little Rock Band, hunted "in southwestern Minnesota and southeastern Dakota ... between Swan Lake and the Coteau des Prairie," until forced to move to reservation land near the Minnesota River in the wake of the 1857 Spirit Lake Massacre.
Ishtabkhaba tried to promote peace with whites in and around the state of Minnesota. He was a signer of at least four treaties with the United States government, including the Treaty of Traverse des Sioux, and met with President James Monroe in Washington, DC in 1824. Chief Sleepy Eyes was known for his friendships with "explorers, traders, missionaries and government officials".