Posted in Government & Military, Health & Medicine, Internet Slang, Schools & Education DMHS stands for Desert Mountain High School (Scottsdale, AZ) DMHS stands for Department of Mental Health Services DMHS stands for DuPont Manual High School (Louisville, KY) DMHS stands for Division Mental Health Section DMHS stands for Doesn’t Matter, Had Sex DMHS stands for Douglas MacArthur High School (San Antonio, TX)