Margaret Hamilton (b. 1936) is a computer scientist and engineer who, as Director of the Software Engineering Division of the MIT Instrumentation Laboratory, played an important part in the Apollo space programme. Her division was responsible for developing the onboard flight software for the missions that put the first men on the Moon, and she was the supervisor and lead programmer of the project.
She graduated with a degree in abstract mathematics, during a time when computer science and software engineering were not yet disciplines in their own right. She worked for the SAGE Project, used by the military in aircraft defense. Since 1986 she has been the CEO of Hamilton Technologies, an organization which she founded.