Edith Anne "Edie" Widder Smith (born 1951) is an American oceanographer, marine biologist, author, and the co-founder, CEO and Senior Scientist at the Ocean Research & Conservation Association.

[10] Her research involving submersibles has been featured in BBC, PBS, Discovery Channel, and National Geographic television productions.

These include HIDEX, a bathyphotometer, which is the U.S. Navy standard for measuring bioluminescence in the ocean,[14] and a remotely operated camera system, known as Eye in the Sea (EITS), an unobtrusive deep-sea observatory.

[19] In 2012, a team of scientists comprising Edith Widder, zoologist Tsunemi Kubodera and marine biologist Steve O'Shea successfully filmed a live giant squid (Architeuthis dux) in its natural habitat[20] aboard Oceanx's MV Alucia.

[21] In 2019, Edith Widder and Nathan J. Robinson filmed the first-ever footage of a live giant squid recorded in US waters.