The Pomo are an indigenous people of California.

The historical Pomo territory in Northern California was large, bordered by the Pacific Coast to the west, extending inland to Clear Lake, and mainly between Cleone and Duncans Point.

One small group, the Northeastern Pomo of the Stonyford vicinity of Colusa County, is separated from the core Pomo area by lands inhabited by Yuki and Wintuan speakers.

Map of the historical distribution of the Pomoan languages with neighboring groups indicated

The name pomo derives from a conflation of the Pomo words [pʰoːmoː] and [pʰoʔmaʔ].

It originally means "those who live at red earth hole" and is at one time the name of a village in southern Potter Valley near the present-day community of Pomo.

It may have referred to local deposits of the red mineral magnesite, used for red beads, or to the reddish earth and clay, such as hematite, mined in the area.

In the Northern Pomo dialect, -pomo or -poma is used as a suffix after the names of places, to mean a subgroup of people of the place.

By 1877 (possibly beginning with Powers), the use of Pomo has been extended in English to mean the entire people known today as the Pomo.

The Pomo have twenty chiefs at the same time