Malcolm Ludvigsen (born February 14, 1946) is an artist and scientist. He is an oil-painter with a particular interest in figure and en plein-air painting, and professor of mathematics with a special interest in relativity, black holes, the positive energy theorem and cosmology. He is the author of a book on general relativity.[1] He is known for his work with Ezra T. Newman on H-space, and his work with Vickers on the positive energy theorem for Bondi mass.