Rex Weyler (born September 10, 1947) is an American / Canadian author, journalist and ecologist.
He has worked as a writer, editor, and publisher.
In the 1970s, Weyler served as a director of the original Greenpeace Foundation, and as campaign photographer and publisher of the Greenpeace Chronicles.
He was a cofounder of Greenpeace International in 1979.Weyler is the author of multiple books about Greenpeace history (Greenpeace: The Inside Story) and religious commentary (The Jesus Sayings: A Quest for His Authentic Message).
In the 1990s, he coauthored a U.S.
patent for music tuning software and co-founded Justonic Tuning Inc.
with his partner Bill Gannon, to develop and market the product.