Name
- Madhaf, Ibrahim bin, pearl merchant, fl 19101
- Mahlab, Salih Sasoon, merchant, fl 19181
- Mahmood Abduljabbar Koohrji & Sons, Bahrain agent, 20th century1
- Malcolm, John, Knight, diplomat and administrator, 1769-18331
- Mann, Alex, physician, fl 1922-19241
- Marcellus, Henri, author, 1891-19741
- Maxwell, William George, Knight, colonial administrator, 1871-19591
- Menashi Ebrahim Cohen and Sons, Bahrain, Mid 20th century1
- Messrs A and T J Malcolm, Persian Armenian firm, Late 19th century-Early 20th century1
- Military Adviser to the Sultan of Muscat and Oman, 1940s1
- Minister for Foreign Affairs, Iraq, 1924-1
- Ministry of Civil Aviation, 1945-19531
- Ministry of Finance, Muscat and Oman, Early 20th century - Mid 20th century1
- Ministry of Food, 1939-19551
- Ministry of Food, Dried Fruits Division, 1940-c 19441
- Ministry of Foreign Affairs, Iran, 1821-1
- Ministry of Foreign Affairs, Pakistan, 1947-1
- Ministry of Foreign Affairs, Saudi Arabia, 1930-1
- Mitsubishi, 1870-1
- Mornington, sloop-of-war, Early 19th century1