The meaning of the Acronym OHMS is...

OHMS is

• On His Majesty's Service
• On Her Majesty's Service

More Meanings For OHMS:

• Oregon Historical Modelers Society
• Ohio Hystairical Musick Society
• On His Majesty's Service
• On Her Majesty's Service
• Office Of Hearings And Mediation Services
• Office of Hazardous Materials Standards

OHMS is also in:

• Environmental
• Military
• Politics
• Transportation
• Unit Measures