UPW

UPW may refer to:


 * Union of Post Office Workers, the former name of the Union of Communication Workers, in the United Kingdom.
 * Ultimate Pro Wrestling, a defunct professional wrestling promotion.
 * Ultrapure Water, a type of water used during semiconductor manufacturing or chem./physics experiencies.
 * United Public Workers (later United Public Workers of America)
 * UPW, the National Rail station code for Upwey railway station, Dorset, England
 * Upwey railway station, Melbourne