Laurence van Cott Niven is an American science fiction writer. His 1970 novel Ringworld won the Hugo, Locus, Ditmar, and Nebula awards. With Jerry Pournelle he wrote The Mote in God's Eye (1974) and Lucifer's Hammer (1977). The Science Fiction and Fantasy Writers of America gave him the 2015 Damon Knight Memorial Grand Master Award.