Janice Cousteau (née Sullivan; 5 April 1939) is the widow of undersea explorer Philippe Cousteau and joined the Cousteau team on 20 expeditions over 12 years.

Jan Cousteau
Born	Janice Sullivan (1939-04-05) 5 April 1939 (age 85) Redondo Beach, California, U.S.
Spouse	Philippe Cousteau ​ ​ (m. 1967; died 1979)​
Children	Alexandra Cousteau Philippe Cousteau, Jr.

She and Philippe married in Paris. They had two children, Alexandra Cousteau and Philippe Cousteau Jr., born six months after his father's accidental death.^[1]

As of 2007, she served on the board of directors of the Washington Humane Society^[2] and is a co-founder, with her children, of EarthEcho International. She has also served on the board of directors for Alliance française.^[3]

She still takes part in occasional expeditions.^[4]