Plaza de César Chávez, Public plaza and park in Downtown San Jose, United States.

Plaza de César Chávez is a rectangular public plaza and park in downtown San Jose, mostly lawn cut by gray paved walkways that converge near the center. In the middle sits a wide, shallow fountain whose jets spray upward over a paved pool. Rows of tall palm trees with thick brown trunks and fan-shaped fronds line the walks and lawn, low green shrubs and leafy trees border parts of the grass, and flat rectangular plaques lie set into the paving.

Spanish authorities laid out the plaza in 1797 when the Pueblo de San José de Guadalupe moved from the Guadalupe River to its present downtown site, and it has been in public use since. From 1849 to 1851 the park held California's first state capitol, during the years the territory became an American state. San Jose's city hall stood at the center of the park from 1889 until 1958, when local government moved north to North First and Mission Streets.

The plaza's name honours César Chávez, the California civil rights activist, and was given in 1993. Its calendar includes the San Jose Jazz Summer Fest main stage, the Music in the Park concerts held since 1988, and the Fountain Blues & Brews Festival, founded in 1981 and the longest-running blues festival on the West Coast. From Thanksgiving to New Year's the grounds hold Christmas in the Park, and Silicon Valley Pride has gathered near the plaza since 2015.

The plaza sits near museums, restaurants, and hotels in the downtown area with good public transportation connections. The location makes it easy to visit and explore nearby attractions on foot.

At the southern end of the plaza stands a statue of Quetzalcóatl created by sculptor Robert Graham. This artwork adds an artistic dimension to one of Northern California's oldest public spaces.