Sonoma may refer to:
- Sonoma County, California, a county in northern California in the United States
- Several wine regions in Sonoma County including:
- Sonoma Coast AVA
- Sonoma Mountain AVA
- Sonoma Valley AVA
- Sonoma, California, the city for which the county is named
- Sonoma Valley, the region in Sonoma County in which Sonoma is the largest settlement and only incorporated city
- Sonoma Valley Airport
- Sonoma Valley Museum of Art
- Sonoma County Museum
- Sonoma State Historic Park
- Sonoma State Observatory
- Sonoma Mountain
- Sonoma Mountains
- Lake Sonoma
- Sonoma Creek, the main watercourse forming Sonoma Valley
- Sonoma Skypark
- Sonoma International Film Festival
- Sonoma State University, located in Rohnert Park, Sonoma County, California
- GMC Sonoma, a model of pickup truck
- Sonoma, the code name for an Intel Centrino platform (see Centrino#Sonoma platform)
- Sonoma diet
- Sonoma Plaza
- Williams-Sonoma, a housewares company
- Sonoma Valley Sun, Sonoma Valley newspaper and web portal
- Sonoma College, a college based in Papua New Guinea
- Sonoma, a generic brand of cigarettes
- USS Sonoma, various United States Navy ships
- Infineon Raceway, formerly known as Sears Point Raceway and described as Sonoma Raceway by NASCAR