JMH may refer to:
Hospitals Jackson Memorial Hospital, associated with the University of Miami school of medicine
Publications Journal of Mental Health, published bimonthly in the United Kingdom The Journal of Military History, published quarterly by the Society for Military History Journal of Mississippi History, published quarterly by the Mississippi Historical Society Journal of Modern History, published by the University of Chicago Press Journal of Mormon History, published quarterly by the Mormon History Association
Schools James Madison High School (disambiguation) James Meehan High School, in New South Wales, Australia John Maland High School, in Devon, Alberta, Canada John Marshall High School (disambiguation) Jordan-Matthews High School, in Siler City, North Carolina
Science John-Milton-Hagen blood group antigen, protein fixed to cell membrane by GPI linkage Java Microbenchmark Harness, a Java harness for building, running, and analysing nano/micro/milli/macro benchmarks written in Java and other languages targeting the JVM.