Anton Mavretič (11 December 1934 – 21 November 2019)[1] was a Slovene electrical engineer who worked in the United States.

Then he worked at Westinghouse for two years developing color TV and finally studied at the Pennsylvania State University where he obtained PhD in ionospheric research.

Later, he became an engineer at MIT where he worked on the Interplanetary Monitoring Platform.

He became a corresponding member of Slovenian Academy of Sciences and Arts in June 2007.

Mavretič worked for the MIT Center for Space Research under contract for NASA from 1972 to 1979 and contributed to the development of plasma spectrometers for the Voyager 1 and Voyager 2 projects.