Jehsong Baak is an American photographer based in Paris.

In 1977, At the age of nine, Baak left his native South Korea for the United States where the family eventually settled in Maryland. Having discovered photography in his teens, Baak left the University of Michigan for New York City to devote himself exclusively to his work. He moved to Paris in 1998.

In 2006, his first monograph, "Là ou Ailleurs", (preface by the poet and art critic, Alain Jouffroy) was published in France by Robert Delpire, followed by a second book "Photographs" (preface by curator Eddie Marsman), published in 2008 in Amsterdam by the HUP Gallery. His third book, "One Last Goodbye" (afterwards by Holly Roussell and Roger Ballen), was published in 2016 by Wonderlust Press in Paris.

Baak was a member of Galerie Vu from 2000-2004 and has had solo exhibitions in Paris, New York, Amsterdam, Los Angeles, Istanbul and Milan.

In 2011, Baak was the photographer of honor of Paris Photo chosen by the sponsor, JPMorgan Chase.

His photographs can be found in the collections of the Corcoran Gallery in Washington, Houston Museum of Fine Arts, George Eastman Museum, JPMorgan Chase Art Collection, Musée Maillol, Wilson Center of Photography in London, as well as in numerous private collections.