Greg Mort (born March 22, 1952) is an American artist and amateur astronomer whose paintings have been the subject of numerous exhibitions. His portraits, still lifes, and landscape paintings are represented in public collections including the Smithsonian National Air and Space Museum, Corcoran Gallery of Art, Smithsonian American Art Museum, Vatican Observatory, Brandywine River Museum, Farnsworth Art Museum, and the Academy Art Museum in Easton, MD, which was gifted the David H. Hickman Collection of 38 Mort paintings.
In 2008, the Greg Mort Family established the not-for-profit foundation, The Art of Stewardship, to support other artists to express their environmental awareness and stewardship of the earth through art. Mort began with his series of Stewardship paintings.
Mort divides his time between the semi-rural village of Ashton, MD and Fieldstone Castle, Port Clyde, Maine. Built by Russell W. Porter, the diminutive castle is located near the Marshall Point Light.