Brass is a metal alloy of copper and zinc.

Brass may also refer to:

• Brass (TV series), a 1980s British television series starring Timothy West
• Brass, a city in Bayelsa State, Nigeria
• Brass instrument, a musical instrument where the sound is produced by the vibration of the players lips
• Monumental brass, commemorative plates laid down in British and European churches
• Horse brass, a plaque used to decorate shire horses
• Brass, a board game depicting the Industrial Revolution, designed by Martin Wallace
• The casing used to house the bullet and powder in a modern firearm

People with the surname Brass:

• Chris Brass, English footballer
• Jim Brass, a character on the television series CSI: Crime Scene Investigation
• Leonard John Brass, Australian botanist
• Tinto Brass, an Italian filmmaker