Plaza de la Guerra,^[1][2][3] also known as De La Guerra Plaza, is a public plaza in downtown Santa Barbara, California, USA, located right next to the Santa Barbara News-Press offices. It is best known for the activities that take place there during Santa Barbara's annual Fiesta in early August. There are booths, musical performances and many festivities for the downtown area in De La Guerra Plaza. In the 1950s, there was a glass-blowing booth^{[citation needed]} where children could buy and take home glass ornaments as souvenirs. It is named after the Guerra family of California, a historically prominent Californio family.

De la Guerra Plaza was a public gathering place and festival area as far back as Santa Barbara's Mexican Alta California era. The plaza is located in front of the de la Guerra Adobe^[4]

• History of Santa Barbara, California
• Casa de la Guerra
  • José de la Guerra y Noriega
  • Pablo de la Guerra
  • Antonio Maria de la Guerra
  • Alfred Robinson - Anita de la Guerra de Noriega y Carrillo