3H (disambiguation)

$3$H means 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