Ethel D. Jacobs (March 18, 1910 - November 9, 2001) was a prominent American Thoroughbred racehorse owner/breeder who was a three-time leading owner in North America.
She and her husband owned Stymie Manor, a horse breeding operation in Sparks, Maryland.
Son Thomas also bred horses, and daughter Patrice married Louis Wolfson.
Ethel and Hirsch Jacobs maintained homes in Forest Hills, Queens, and Bal Harbour, Florida.
Sinai Hospital in Miami Beach at age 91 and was buried in the Gate of Heaven Cemetery, Hawthorne, New York.