California's 29th senatorial district is one of 40 California State Senate districts. It is currently represented by of .
The district is located in the Inland Empire in San Bernardino County. The district includes the cities of San Bernardino, Fontana, and Rialto, along with parts of Colton, Highland, Rancho Cucamonga, Redlands, and Upland.
Due to redistricting, the 29th district has been moved around different parts of the state. The current iteration resulted from the 2021 redistricting by the California Citizens Redistricting Commission.