Henry Givens Baker Jr. is an American computer scientist who has made contributions in garbage collection, functional programming languages, and linear logic.
He was one of the founders of Symbolics, a company that designed and manufactured a line of Lisp machines.
In 2006 he was recognized as a Distinguished Scientist by the Association for Computing Machinery.
He is notable for his research in garbage collection, particularly Baker's real-time copying collector, and on the Actor model.
The Chicken Scheme compiler was inspired by an innovative design of Baker's.