Streets of Orange County named after people:

• Gothard St. - named after George Gothard
• Bastanchury Rd. - named after Domingo Bastanchury
• Borchard Ave. - named after Leo Borchard
• Glassell St. - named after Andrew Glassell
• Amerige Ave. - named after Edward Amerige and George Amerige
• Chapman Ave. (Fullerton area) - named after Charles Chapman
• Chapman Ave. (Orange area) - named after Alfred Beck Chapman
• Katella Ave. (Anaheim) - named after Kate Rea and Ella Wallop (Rea)
• McFadden Ave. - named after the McFadden Brothers, James McFadden, John McFadden, Robert McFadden and Archibald McFadden.
• Newland St. - named after William T. Newland Sr.
• Warner Ave. - named after Willis Warner
• Talbert Ave. - named after Samuel Talbert
• Bushard St. - named after John Bushard
• Segerstrom Ave. - named after Henry Segerstrom and Hal Segerstrom and family.
• Edinger Ave. - named after Christopher Columbus Edinger (Trivia: Edinger is pronounced like Edingur, not Edinjer)
• Tustin Ave. - named after Columbus Tustin
• Slater Ave. - named after William Slater
• Heil Ave. - named after Vernon Chester Heil

Cities of Orange County named after people:

• Dana Point - Richard Dana Jr.
• Huntington Beach - Henry E. Huntington
• Irvine - James Irvine
• Stanton - Phillip Ackley Stanton
• Yorba Linda - José Antonio Yorba
• Tustin - Columbus Tustin
• Fullerton - George H. Fullerton

Businesses of Orange County named after people:

• Disneyland (Anaheim, CA) - Walt Disney
• Knott's Berry Farm (Buena Park, CA) - Walter Knott and Cordelia Knott
• Carl's Jr. Restaurants (various locations) - Carl Karcher
• Chapman University (Orange, CA) - Charles Chapman
• Pendleton Elementary School (Buena Park, CA) - Mabel L. Pendleton
• Nixon Presidential Library (Yorba Linda, CA) - President Richard Nixon
• John Wayne Airport (Santa Ana, CA) - John Wayne
• The Newland House (Huntington Beach, CA) - William Newland Sr.
• Masuda Middle School (Fountain Valley, CA) - Kazuo Masuda
• Willis Warner Middle School (Westminster, CA) - Willis Warner
• Talbert Middle School (Fountain Valley, CA) - Samuel Talbert
• William H. Spurgeon Intermediate School (Santa Ana, CA) - William Spurgeon
• Andrew Whitaker School (Buena Park, CA) - Andrew Whitaker
• Tiger Woods Learning Center (Anaheim, CA) - Tiger Woods
• Segerstrom Center for the Arts - Henry Segerstrom and Hal Segerstrom and Family
• Segerstrom Fundamental High School - Henry Segerstrom and Hal Segerstrom and Family
• Columbus Tustin Middle School - Columbus Tustin
• Columbus Tustin Activity Center - Columbus Tustin
• Columbus Tustin Park - Columbus Tustin
• Huntington Beach High School - Henry Edwards Huntington

First Mayors:

• Anaheim, CA Max Strobel
• Costa Mesa, CA Charles TeWinkle
• Fullerton, CA - Charles Chapman
• Huntington Beach, CA - Ed Manning
• Santa Ana, CA - William Spurgeon

Founders

• George Hansen - founder of Anaheim, CA
• John Frohling - found of Anaheim, CA
• Andrew Whitaker - founder of Buena Park, CA
• Andrew Glassell and Alfred Beck Chapman - founders of Orange, CA
• Alonzo Cook - founder of Garden Grove, CA
• Edward Amerige and George Amerige - founders of Fullerton, CA
• Ole Hanson - founder of San Clemente, CA
• James Irvine, brother Robert Irvine, and friend James McFadden - founders of Newport Beach, CA
• William Spurgeon - founder of Santa Ana, CA
• Rev. Lemuel Webber - founder of Westminster, CA
• Columbus Tustin - founder of Tustin, CA

Mexican and Spaniard Pioneers

• Don Juan Pablo Grijalva - original petitioner for Rancho Santiago de Santa Ana
• José Antonio Yorba - awarded by the Spanish Empire the 63,414-acre (256.63 km2) Rancho Santiago de Santa Ana land grant. Covering some 15 Spanish leagues, Yorba's land comprised a significant portion of today's Orange County including where the cities of Olive, Orange, Villa Park, Santa Ana, Tustin, Costa Mesa and Newport Beach stand today.
• John "Don Juan" Forster - born in England, became a Mexican citizen of early California and was one of the largest landowners in California. He lived in what is now Rancho Santa Margarita, CA.
• Juan José de Sepulveda - Francisco Xavier Sepulveda (1742 – 1788) was a Mexican colonial soldier and patriarch of the prominent Spanish Mexican Sepulveda family in the early days of Las Californias and Alta California in present day Southern California, United States. Sepulveda's eldest son, Juan José Sepulveda (1764–1808), and his fifth son, Francisco Sepulveda (1775–1853), became progenitors of two distinguished branches of the family.
• Don Jose de Jesus Pico (1806-1892), a member of the Pico family of California (a prominent Californio family), was the son of Jose Dolores Pico and Isabel Cota. He was born in Monterey in 1806. His brother, Antonio Maria Pico, was the grantee of Rancho Pescadero. Another brother was the bandit Salomon Pico. José de Jesús Pico was a soldier, and married Francisca Zaviera Trinidad Antonia Gabriela Villavicencio (b. 1813) in 1832. Originally part of the Mission San Miguel coastal grazing land, the eleven square league Rancho Piedra Blanca was granted to Pico in 1840. In 1841 Pico was appointed administrator of Mission San Miguel.

California's Only Pirate

• Hippolyte de Bouchard - Raided San Juan Capistrano, taking food and ammunition as well as running amok.

Etcetera

• Lewis Ainsworth - notable lumber businessman of Orange County
• Charles Artz - former grocer in Tustin, CA. His former grocery store is a historic Tustin building, still in standing.
• Jan Berry - part of music duo Jan & Dean who made popular "Surf City," what Huntington Beach is nicknamed.
• Susanna Bryant (Bixby) - founded Rancho Santa Ana Botanic Garden
• George Freeth - brought surfing to the mainland by Henry Huntington; surfed at the opening of the first Huntington Beach Pier.
• Erolinda Yorba (Cota) - one of the last survivors of the "Old Rancho Life" of SoCal. Lived on the Yorba ranch for many years before her death.
• Amalie Frohling Eymann (Hammes) - first bride of Anaheim. Married to John Frohling, founder of Anaheim.