The meaning of the Acronym HMSO is...

HMSO is

• Hammarskjold Middle School Orchestra

More Meanings For HMSO:

• Highline Medical Services Organization
• Her Majesty's Stationary Office
• Hammarskjold Middle School Orchestra
• Hawaii Military Surfing Ohana

HMSO is also in:

• Hospitals
• Music
• Non-Profit Organizations
• Police