NOG or Nog may refer to:
Antônio Rodrigo Nogueira, Mixed martial arts fighter, also known as "Big Nog"
Antônio Rogério Nogueira, Mixed martial arts fighter, also known as "Little Nog"
Nog (Star Trek), fictional character, a young Ferengi in Star Trek: Deep Space Nine
Noggin (protein), also known as NOG, a human protein
N-Oxalylglycine, an organic compound
Internet network operators' groups (NOGs), informal groups which provide forums for Internet network operators
NOG, IATA code for Nogales International Airport (Mexico), Nogales, Sonora
NOG, FAA location identifier for Naval Auxiliary Landing Field Orange Grove, a military airport southwest of Orange Grove, Texas
nog, slang for eggnog
Nogs, a people in Noggin the Nog, a popular British children's television series
Nog (novel), by Rudolph Wurlitzer
Brick nog, bricks filled in-between wooden framing
A horizontal framing member in a wall or floor also called a nogging piece or dwang
Nogai (ISO 639-2 nog), a Turkic language of the North Caucasus
North Geelong railway station, Australia
