| Name | Known for | Relationship to Fullerton |
| Josh Akognon | professional basketball player | |
| Damon Allen | Canadian football player; all-time leading passer in professional football history | |
| Nicholas Arciniaga | long-distance runner | |
| Paul Barnes | artistic director and founder, Great River Shakespeare Festival | theatre |
| James Blaylock | author | M.A. in English, 1974 |
| Bruce Bowen | former professional basketball player | 1989–1993 |
| Bobby Brown | professional basketball player | majored in communications |
| Gerald Brown | former professional basketball player | |
| Tracy Caldwell | NASA astronaut | B.S. in chemistry, 1993 |
| James Cameron | film director and writer | studied physics[1] |
| Charles Castronovo | tenor opera singer | studied music, 1993–1995[2] |
| Cedric Ceballos | former professional basketball player | |
| Marc Cherry | television writer and producer | B.A. in theatre arts, 1995[3] |
| Mark Collins | professional football player (New York Giants (1986–1993) Kansas City Chiefs (1994–1996) Green Bay Packers (1997) Seattle Seahawks (1998)) | |
| Chad Cordero | professional baseball player | |
| Lou Correa | California State Senator | graduated with a degree in economics |
| Shane Costa | baseball player | did not graduate |
| Kevin Costner | film actor and director | B.A. in business, 1978[4] |
| Mara Davi | Broadway actress (A Chorus Line, The Drowsy Chaperone) | |
| Richard K. Davis | chief executive officer, U.S. Bancorp | B.A. in economics, 1983 | |
| Henry DiCarlo | television meteorologist (KTLA) and actor | B.A. in radio television film, 1990 | |
| Joey DiGiamarino | soccer player | |
| T.J. Dillashaw | professional mixed martial artist | UFC bantamweight champion[5] |
| Scott Douglas | author | B.A. in comparative religion and literature |
| Brian Dunseth | soccer player | |
| Danielle Fishel | actress (Boy Meets World) | B.A. in psychology, 2012 |
| Ashley Force | drag racer | B.A., 2003 |
| Courtney Force | drag racer | B.A. in communications |
| Joe Franchino | soccer player | |
| Andrew W. Garcia | entrepreneur and founder, The Arsenal Agency | B.A. in business administration, 2011 |
| Grant Geissman | musician | did not graduate |
| Elizabeth George | author | |
| Todd Gerhart | American football player | 1981–1984 |
| Jeremy Giambi | former professional baseball player | |
| Rod Gilfry | baritone opera singer | B.A. in music education |
| Mary Gray-Reeves | Episcopal bishop of El Camino Real | B.A. in history, 1987 |
| Mike Harkey | former professional baseball player | |
| Dan Henderson | Olympic wrestler and professional mixed martial artist | former Pride/UFC champion[6] |
| David Hirz | president and chief executive officer, Smart & Final | B.A in finance, 1997 | |
| K. W. Jeter | author | B.A. in sociology, 1973 | |
| Reed Johnson | professional baseball player | |
| Ross Johnson | Republican leader in both the California State Senate and California State Assembly | |
| Gabe Kapler | professional baseball player | did not graduate |
| Bobby Kemp | professional football player (Cincinnati Bengals (1981–1986), Tampa Bay Buccaneers (1987)) | |
| Kozue and Dan Kitchens (a.k.a. Kozyndan) | artist and illustrator team | |
| Mark Kotsay | professional baseball player | |
| Giovanni Lanaro | Olympian track and field; pole vaulter, 2004 Athens, 2008 Beijeng | graduated in 2004 |
| Elita Loresca | television meteorologist (KNBC) | B.A. in broadcast journalism |
| Danella Lucioni | runway and fashion model; actress | B.A. in communications, radio television film, 2007[7] |
| Carl Macek | anime producer (Robotech) | |
| Steve Mariucci | football coach | |
| Antonio Martínez | soccer player | |
| James D. McCaffrey | software researcher and writer | B.A. in mathematics |
| José Mota | Los Angeles Angels of Anaheim broadcaster for KCAL-TV | |
| Patrick Nagel | artist and illustrator | |
| Phil Nevin | former professional baseball player | |
| Chris Norby | California State Assemblyman | M.A. in history, 1989 |
| Jack O'Connell | California State Superintendent of Public Instruction | B.A. |
| Valorie Curry | Actress |
| Duncan Oughton | soccer player | did not graduate |
| Jessica Penne | professional Mixed Martial Artist, UFC Strawweight contender | [8] |
| Vinnie Pestano | professional baseball player | |
| Brett Pill | professional baseball player | |
| Allen Pitts | professional Canadian football player | |
| Cynthia J. Popp | television director and producer | |
| Monique Powell | lead singer of the ska punk band Save Ferris |
| Tim Powers | author | |
| Mike Pringle | professional Canadian football player | |
| Bao Quach | wrestler; professional mixed martial artist | [9][10] |
| Tony Reagins | general manager, Los Angeles Angels of Anaheim | B.A. in marketing, 1991 |
| Jessica Rey | actress, entrepreneur | B.A. in business[11] |
| Greg Robinson | head football coach, Syracuse University | |
| Terry Rossio | screenwriter | B.A. in communications, 1984[12] |
| Mike Rouse | baseball player | |
| Aaron Rowand | professional baseball player | |
| Edward R. Royce | United States congressman | B.A. in accounting and finance, 1977 |
| Kirk Saarloos | professional baseball player | did not graduate |
| Vida Samadzai | 2003 Miss Afghanistan | |
| Antoine Sanchez | producer, television personality (Roadtrip Nation, season 8), public speaker, mixed martial arts aficcionado, Los Angeles socialite | Sigma Phi Epsilon |
| Josh Saunders | soccer player | |
| Michael Shermer | author and founder, The Skeptics Society | M.A. in psychology, 1978[13] |
| Pape Sow | professional basketball player | |
| Gwen Stefani | singer for rock band No Doubt | |
| Marc Stein | senior NBA writer for ESPN.com | class of 1991 |
| Jason Stewart | "Jay Stew" on The Jim Rome Show and a member of the Screen Actors Guild | class of 1995; B.A. in communications-broadcast journalism |
| Kurt Suzuki | professional baseball player | |
| Jesse Taylor | NCAA Division I qualifier for wrestling; mixed martial arts fighter | [14] |
| Jenny Topping | United States national team softball player | |
| Justin Turner | professional baseball player | |
| Kirsten Vangsness | actress (Criminal Minds)[15] | class of 1995 |
| Deborah Voigt | soprano opera singer | music: vocal performance |
| Tim Wallach | former professional baseball player | |
| Brent Whitfield | soccer player | |
| Jason Windsor | baseball player | |
| Leon Wood | Olympian, former professional basketball player, NBA referee | |
| Linda Woolverton | screenwriter (Disney's Beauty and the Beast) | |