YM

YM, Ym, or ym may refer to:

Arts and entertainment

 * YM (magazine), an American teen magazine
 * Yngwie J. Malmsteen, Swedish guitarist
 * Yokozuna Monogatari, a 1994 Japanese sumo wrestling video game

Businesses and organizations

 * Montenegro Airlines (IATA airport code YM)
 * Yarmouth Mariners, a Maritime Junior A Hockey League team
 * Youth Meeting, a program of CISV International
 * Dow Jones Industrial Average (futures symbol YM)
 * Young Marines, an American youth organization that promotes a drug-free lifestyle

Science and technology

 * .ym, the Atari ST/Amstrad CPC YM2149 sound chip format
 * YM (selective medium), a selective growth medium which is a combination of yeast and mold
 * Yoctomolar (yM), a unit of molar concentration
 * Yoctometre (ym), a unit of length or distance
 * Yottametre (Ym), a unit of length or distance

Other uses

 * Yam, Ugaritic deity of the sea
 * A US Navy hull classification symbol: Dredge, self propelled (YM)
 * "Ynnä muuta", a Finnish phrase meaning roughly "and the others" or "etc."