title: 3H (disambiguation)
text: # 3H (disambiguation)
  
  $^3H$ is a symbol for tritium.
  
  3H or 3-H may also refer to:
  
  * 3H, or British Rail Class 205
  * 3H Movement, a liberal Turkish youth organization
  * 3H Biomedical, a Swedish biotechnology company
  * Mu-3H, a model of Mu (rocket family)
  * Yuri 3H, a Broadcasting Satellite (Japanese)
  * SSH 3H (WA), alternate designation for Washington State Route 27
  * Old Natchez Trace (230-3H); see Old Natchez Trace segments listed on the National Register of Historic Places
  