Breen

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