Dolly Green (September 19, 1906 – September 4, 1990) was an American heiress, philanthropist and thoroughbred owner.

Dorothy Wellborn Green was born on September 19, 1906, to Burton E. Green (1868-1965), oilman and co-founder of Beverly Hills, California, and Lillian Wellborn.^[1][2] Her maternal grandfather was Judge Olin Wellborn (1848-1921).^[2] In 1979, she inherited part of the $3.6-billion sale of her father's Belridge Oil Company to Shell Oil Co.^[1] She graduated from the Marlborough School.^[1] She later served on the board of trustees of the Burton E. Green Foundation.^[1]

Green spent US$2.2 million for five yearlings at a horse sale at the Keeneland in Lexington, Kentucky, in 1980.^[1] Later, she owned seventy-four thoroughbreds. In 1984, she established the Dolly Green Equine Research Lab of the Southern California Equine Foundation at the Hollywood Park Racetrack in Inglewood, California.^[1] In 1986 at Santa Anita Park in Arcadia, California, her horse Brave Raj won the US$1 million Breeders' Cup Juvenile Fillies and would later be voted the Eclipse Award for American Champion Two-Year-Old Filly.^[1] The Dolly Green Research Foundation, affiliated with the Southern California Equine Foundation, ranks as the second-largest private foundation dedicated to research on equine health issues.^[3] She socialized with Leslie Combs II, owner of Spendthrift Farm in Lexington, Kentucky.^[4]

Green started the Dolly Green Scholars Award at UCLA's Jules Stein Eye Institute.^[1] She was a former member of the Los Angeles Junior League and the advisory board of the Los Angeles Orphanage Guild.^[1]

Green resided in Bel Air, Los Angeles.^[1] She was a billionaire, and one of the richest people in California.^[1][4] She died on September 4, 1990, and was buried in Holy Cross Cemetery in Culver City, California.^[1]