Brass monkey may refer to:

• Brass Monkey (band), an English folk band formed in 1982
• Brass Monkey (cocktail), an alcoholic drink
• Brass monkey (colloquialism), as used by many English speakers to indicate extremes, especially of cold temperature
• "Brass Monkey" (song), 1986, by the Beastie Boys
• Brass Monkeys, a 1984 Australian sitcom
• Brass Monkey (film), a 1948 feature film
• Brass Monkey Half Marathon, a race held near York, England
• Brass Monkey, karaoke dive bar and restaurant in Koreatown, Los Angeles

• Brass statue of the three wise monkeys