SHM

SHM may stand for:


 * Nanki–Shirahama Airport (IATA: SHM), in Wakayama, Japan
 * Sandringham railway station, Melbourne
 * Prefix for several shared memory functions in Unix-like systems (shmat, shmctl, etc.)
 * Shek Mun station, Hong Kong, MTR station code
 * Simple harmonic motion, in physics
 * Somatic hypermutation, allowing immune system adaptation
 * Structural health monitoring of engineering structures
 * Supporting Healthy Marriage, US study
 * Swedish House Mafia, a house music supergroup from Stockholm