Natomas is a community in northwestern Sacramento, California. It is the last area of Sacramento that has not been fully developed, and has seen major residential development in the 1990s and 2000s.

ARCO Arena, home court to the Sacramento Kings and Monarchs, and the now disbanded Sacramento Knights, is in Natomas. The neighborhood school district is Natomas Unified School District.

Natomas is generally defined as south of the Sacramento County line, north of the Garden Highway and the American River, west of the Natomas East Main Drain, and east of the Sacramento River.