Robert Arthur Leeson (born 1928 in Cheshire) is a British author, mainly known for his children's books. He is a prolific writer, having had over 70 books for young people published between 1973 and 2003. His books include The Third Class Genie (1975) and the Time Rope (1986) and Zania Experiment (1993) series. He has also written for radio, television and the theatre.