Kletsel Dehe Wintun Nation of the Cortina Rancheria
General location of  the Cortina Rancheria  | |
| Total population | |
|---|---|
| 117 enrolled members, 19 rancheria residents  | |
| Regions with significant populations | |
| Colusa County, California | |
| Languages | |
| English, formerly Wintu | |
| Related ethnic groups | |
| Wintun (Nomlaki and Patwin), Yokuts | 
The Kletsel Dehe Wintun Nation of the Cortina Rancheria is a federally recognized tribe of Indigenous people of California. They are Wintun people, who historically spoke Wintuan languages.
They're headquartered in Williams, California, and they have approximately 270 enrolled citizens. They were previously known as the Kletsel Dehe Band of Wintun Indians, Cortina Indian Rancheria, and Cortina Indian Rancheria of Wintun Indians of California.