Charles R. Conn (born 22 August 1961) is a Canadian and American CEO, conservationist and author. In 2021 he co-founded and is partner of Monograph, a life sciences venture firm. In 2019 he was the CEO of Oxford Sciences Innovation. Previously, he was the warden and global CEO of Rhodes House and the Rhodes Trust, the organization responsible for administering the Rhodes Scholarship from 2013 to 2018.