Breen may refer to:

• Breen (surname)
• The Breen (Star Trek), an alien species in the Star Trek universe.
• Breen, the Babylon 5 universe, a Narn cuisine similar to Swedish meatballs, first mentioned in the episode " Walkabout"
• Breens, the people of the fictional nation of Bregna in the animated television series Aeon Flux
• Jason Breen, fictional detective from the American TV series Kyle XY
• Wallace Breen, a major antagonist in the video game Half-Life 2
• Breen House, a house at St. Michael's Grammar School in Melbourne, Australia
• Breen, Colorado, an unincorporated community
• Breen Township, Michigan
• Breen, County Antrim, a townland in County Antrim, Northern Ireland
• Breen, County Tyrone, a townland in County Tyrone, Northern Ireland

• Brean, a village in Somerset, England

This disambiguation page lists articles associated with the title Breen.
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