YBM
YBM may refer to:

 ybm, ISO 639 code for the Yaben language
 YBM Inc. (formerly YBM Si-sa), a Korean educational company which is also known for developing the Nintendo DS software Touch Dictionary
 YBM Seoul Records, a former subsidiary of YBM group, later sold to Kakao and renamed Kakao M
 YBM, former IATA code for Bronson Creek Airport, Canada
 Young Bretons Movement/Ar Vretoned Yaouank, the youth section of the Breton Party in France
 YBM Magnex, originally known as Alberta-incorporated company Partecs, purportedly used in a "pump and dump" scheme