HDMS may refer to:
* ''His/Her Danish Majesty's Ship'' (in Danish, ''KDM''), ship prefix for Denmark's
Royal Danish Navy
*
Hexamethyldisilazane
Bis(trimethylsilyl)amine (also known as hexamethyldisilazane and HMDS) is an organosilicon compound with the molecular formula CH3)3Sisub>2NH. The molecule is a derivative of ammonia with trimethylsilyl groups in place of two hydrogen atoms. An e ...
, chemical reagent
{{disambig