Wem may refer to:
*HMS Wem (1919), HMS ''Wem'' (1919), a minesweeper of the Royal Navy during World War I
*Weem, a village in Perthshire, Scotland
*Wem, a small town in Shropshire, England
*Wem (musician), hip hop musician
WEM may stand for:
* County Westmeath, Ireland, Chapman code
*Watkins Electric Music, a British manufacturer of musical instruments
*Wells Regional Transportation Center, a train station in Wells, Maine, United States, which uses the code WEM
*West Edmonton Mall, Alberta, Canada
* World Energy Model, from the International Energy Agency
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