Michael John Romer Healy was a British statistician known for his contributions to statistical computing, auxology, laboratory statistics and quality control, and methods for analysing longitudinal data, among other areas. He was professor of medical statistics at the London School of Hygiene and Tropical Medicine from 1977 until his retirement. The Royal Statistical Society awarded him the Guy Medal in Silver in 1979 and Gold in 1999, and he also acted as chairman of its medical section. He was the author or co-author of three books and over 200 scientific papers.