That depends on how you're using it.
As PART OF a title, it's usually abbreviated "M", as in "Master of Science" : "MS" or "Master Sergeant" : "MSG/MSgt".
As a title in its own right (used for young boys), it's either "M." or "MSTR" or "there isn't one, write out 'Master' in full" depending on who you ask.
The Abbreviation MA stands for Master of ArtsThe Abbreviation MA stands for Master of Artsmy
Master is used without abbreviation.
MC
The abbreviation for a Master's degree in educational administration is. M. Ed. This is a coveted degree for superintendents and principals.
The correct abbreviation for a Master's degree in Sociology is usually written as M.A. (Master of Arts) or M.S. (Master of Science) in Sociology, depending on the specific program and institution.
The abbreviation for Master's of Science in Psychology is M.S. in Psychology.
The abbreviation for both is Mr.
MA. Thrill
MDIT
M.S. in Ed.
It is typically abbreviated M.Div.
MSgt or MSGT