Gwendolyn Sontheim Meyer

Gwendolyn Sontheim Meyer
Born	1961/1962 (age 55–56)
Residence	Rancho Santa Fe, California
Nationality	American
Occupation	Equestrian
Net worth	$4.2 billion (February 2017)
Children	2
Parent(s)	Marion MacMillan Pictet
Relatives	William W. Cargill (great-great-grandfather) Whitney MacMillan (maternal uncle)

Gwendolyn Sontheim Meyer (born 1961/62) is an American heiress and equestrian.

She is a great-great-granddaughter of William W. Cargill, the founder of Cargill. Her late mother was Marion MacMillan Pictet.

A show jumper, she won the Prix Credit Suisse at the Geneva International Horse Show in 2011. She also sponsors dressage.

She lives on Coral Reef Ranch in Rancho Santa Fe, California. She is married, and has two children. As of March 2012, she was estimated to be worth approximately US$3 billion.

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