Liliane de Cock Morgan (September 11, 1939 — May 25, 2013) was a Belgian-born American photographer who won a Guggenheim Fellowship in 1972, and was assistant to Ansel Adams.

Liliane de Cock was born near Antwerp, Belgium and spent much of her early childhood in an orphanage to be protected from bombs during World War II.

On the boat ride from Belgium to New York, she met a man named Brett Weston who was also travelling due to being part of the Guggenheim Fellowship.

[7] Liliane de Cock married publisher Douglas O. Morgan,[8] in 1972, at a ceremony performed in Ansel Adams' home in Carmel, California.

[1] She left her work with Adams shortly after and moved to New York with her husband to complete the fellowship along with assisting in the Morgan family publishing business.