•
Jessica D. Aber (1981–2025), U. S. Attorney for Eastern Virginia •
Arthur Adams, comics artist •
Matt Anger, professional tennis player •
Dan Ashley, journalist •
Ruth Bancroft, gardener, landscape architect and creator of the
Ruth Bancroft Garden •
Jessica Bowman, actress, portrayed Colleen Cooper in
Dr. Quinn, Medicine Woman •
Tom Candiotti,
MLB pitcher •
Richard Carlson, psychotherapist, author of ''Don't Sweat the Small Stuff'' •
Curt Casali (born 1988), baseball catcher who last played for the
San Francisco Giants •
Joyce Chin, comics artist •
TJ Cox, congressman •
Corey Duffel, professional skateboarder •
Amit Elor (born 2004), 2024 Olympic champion and 8x world champion freestyle wrestler •
Kyle Gass, guitarist for
Tenacious D, attended
Las Lomas High School •
Lee Goldberg, writer and television producer, graduated from
Northgate High School (1980) •
Mary Griffith, LGBTQ+ activist •
Ella Halikas, model, body positivity activist, and social media influencer •
Miles Hall, a 23 year-old African American unarmed man who was fatally shot by Walnut Creek Police Department officers •
Dan Haren, MLB pitcher •
Brandon Harkins, professional golfer •
Jack Henderson, artist •
Marya Hornbacher, author •
Sabrina Ionescu, basketball player •
Kristian Ipsen, diver, Olympic bronze medalist •
Kyle Jensen, baseball player •
Bessilyn Johnson, daughter of Hiram Penniman, Shadelands Ranch owner, resident of
Scotty's Castle in Death Valley •
Randy Johnson,
Hall of Fame MLB pitcher •
Persis Karim (born 1962), poet, editor, educator; born in Walnut Creek •
Matteo Jorgenson (born 1999), professional cyclist •
Kira Kazantsev, Miss America 2015 •
Alexandra Killewald, professor of sociology at the
Harvard Kennedy School •
Richard L. Lieber, muscle physiologist •
Hans Lineweaver (1907–2009), physical chemist known for popularizing the double-reciprocal plot, died in Walnut Creek at the age of 101 •
Neville C. Luhmann Jr. (1943–2025), physicist •
Tosh Lupoi (born 1981),
defensive line coach for
Jacksonville Jaguars •
Mark "Mad Dog" Madsen (born 1976), NBA player •
John A. Nejedly (1914–2006), California State Senator •
Kyle Newacheck, co-creator, co-star of
Comedy Central's
Workaholics •
Jason Newsted (born 1963),
bassist for
Metallica •
Aaron Poreda (born 1986), MLB pitcher •
Markie Post (1950–2021), television actress •
A.J. Puckett (born 1995), professional baseball pitcher in the
Chicago Cubs organization •
Jeff Richards, writer and featured performer on NBC's
Saturday Night Live, 2001–2004 •
Bill Rigney (1918–2001), MLB infielder, Angels' inaugural manager •
Lester Rodney, journalist, civil rights activist •
Katharine Ross (born 1940), film actress, graduated from Las Lomas High School (1957) •
Leslie Carrara-Rudolph,
Sesame Street puppeteer •
Greg Sestero, actor, star of cult film
The Room, author of
The Disaster Artist, born in Walnut Creek •
Justin Speier (born 1973), MLB pitcher •
Joe Starkey (born 1973), California Golden Bears and former San Francisco 49ers announcer •
Chad Stevens (born 1999), MLB infielder, born in Walnut Creek •
Jacques Terzian (1921–2016) sculptor •
The Story So Far, pop punk band •
Christy Turlington, supermodel, health activist •
Lars Ulrich (born 1963), drummer for
Metallica •
Katie Volynets (born 2001), professional tennis player •
Joseph R. Walker, 19th-century wilderness explorer and scout •
Johnny Weekly (1937–1974), MLB outfielder •
Wayne A. Wiegand, library historian, author, academic •
Sherri Youngward, Christian singer and songwriter ==Sister cities==