Gertrude Thompson Widener (née Douglas; July 8, 1897 – February 3, 1970) was an American socialite and a successful Thoroughbred racehorse owner and breeder.

[1] The couple divorced in 1924, and in November of that year, she remarried to Peter Arrell Browne Widener II, a prominent Philadelphian.

He was the elder child and only son of Joseph E. Widener, from a family heavily involved in the sport of Thoroughbred horse racing.

She remained there until 1968, when her failing health led to her returning home to New York City in 1968, where she died from cancer on February 3, 1970.

Her daughter Ella (and husband Cortright Wetherill) owned Happy Hill Farm in Newtown Township, Delaware County, Pennsylvania, and bred Thoroughbreds, including the very important sire, Raise a Native.