Brownstone is a building material. The term is also used in the United States to refer to a townhouse clad in this material.

Brownstone may also refer to:

• Brownstone (group), an American R&B group
• Brownstone (musical), a 1979 musical
• Brownstone (surname)
• The Brownstone Institute, a non-profit think tank founded by Jeffrey Tucker and opposing COVID-19 restrictions
• Brownstone Productions, a production company founded in 2002 by actor and producer Elizabeth Banks
• " Mr. Brownstone", a Guns N' Roses song
• "Brownstone", slang for impure illicit recreational drug mixtures such as black tar heroin, which can have a brown or dark coloration from impurities, whence the name of the Guns N' Roses song
• Brown Stone, a neighborhood in Beijing, China

This disambiguation page lists articles associated with the title Brownstone.
If an internal link led you here, you may wish to change the link to point directly to the intended article.