Alejandro Miguel San Martín[1] (January 6, 1959) is an Argentine engineer of NASA[2] and a science educator.

[3] He is best known for his work as Chief Engineer for the Guidance, Navigation, and Control system in the latest missions to Mars.

He has participated as a speaker at various events such as Campus Party, Robotics Day,[7] Real Talks Atlanta[8][9] and TEDx Río de la Plata,[10] among other conferences.

[14] In various interviews he said that he decided to be a space engineer on a winter's night in 1976 at his parents’ farm, while he listened to the BBC on short wave reporting the arrival of the Viking mission to Mars.

Later in the Pathfinder mission he was named Chief Engineer for the Guidance, Navigation, and Control system, which landed Sojourner rover.