Carle McGetchin Pieters (born 1943)[citation needed] is an American planetary scientist.

Pieters has published more than 150 research articles in peer-reviewed journals and was co-author of the book Remote Geochemical Analyses: Elemental and Mineralogical Composition along with Peter Englert.

[2] Pieters spent three years at NASA Johnson Space Center before becoming a professor at Brown University in 1980 and has remained there ever since.

She is also a co-investigator on NASA's Dawn mission to the asteroids Vesta and Ceres.

Additionally, she is a sitting member of the NASA Advisory Council's Planetary Protection Subcommittee and a Fellow of both the American Association for the Advancement of Science and the American Geophysical Union.