Sian Proctor

Sian Hayley "Leo" Proctor (March 28, 1970) is an American commercial astronaut, geology professor, artist, author, and science communicator. She became the first female commercial spaceship pilot and the first artist selected to go to be an astronaut on the all-civilian Inspiration4orbital spaceflight, 15 September 2021. As pilot of the Inspiration4's SpaceX Crew Dragonspace capsule, Proctor became the first African-American woman to pilot a spacecraft. She was also the education outreach officer for the first Hawaii Space Exploration Analog and Simulation (HI-SEAS) Mission. In 2024, Proctor was selected to be a U.S. Science Envoy for the United States Department of State.

Since Inspiration4, Sian Proctor has become a noted Afrofuturist artist, poet and author. Proctor is the first African American astronaut to paint in space.

Proctor is a major in the Civil Air Patrol where she serves as the aerospace education officer for its Arizona Wing.