LUF can mean multiple things:
* "Liberala ungdomsförbundet", the
Liberal Youth of Sweden
Living Universe Foundation, is an organization that supports ocean and space colonization
Lowest usable high frequency, a term in radio transmission
Luf, an island in the Bismarck Archipelagoclose to the Admiralty Islands
Luxembourgish franc, the ISO 4217code for the former currency of Luxembourg
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