Movement for Socialism and Unity, a Senegalese political party

Michigan State University

Monosodium Urate (Cf. Gout)

Mid-stream urine, used in medicine to test for urinary tract infection

Mississippi State University

Murray State University

Montclair State University

Morgan State University

Missouri State University

Maharaja Sayajirao University of Baroda

Morehead State University

Moscow State University

McNeese State University

Montana State University

Mindanao State University

McMaster Students Union, in Hamilton, Ontario, Canada

Minnesota State University, Mankato

Mahasarakham University

Management & Science University

Minnesota State University Moorhead

Metropolitan State University in Minneapolis and Saint Paul, Minnesota

Minot State University

Studite Brethren (Monaci Studiti Ucraini)

Midwestern State University

Muslim Students Union (variation of Muslim Students' Association)

Million service units, particularly in IBM mainframe computers

MSU Lossless Video Codec, Moscow State University Lossless Video Codec

Mahendra Sanskrit University

Mountain State University

Mobile Stud Unit, a New Zealand Punk band

Military Specialized Unit, unit of the Kosovo Force (KFOR)