Brittany or Bretagne can refer to:

• Brittany (French Bretagne), a peninsula in north-west France, and an historical duchy and province of France
• Bretagne, the administrative région of France
• Brittany spaniel, a breed of dog
• Brittany is also a female name (variants include Britnee, Britney, Brittney).
  • Famous or otherwise significant individuals with this name include singer Britney Spears.

Bretagne is the name or part of the name of several communes in France:

• Bretagne , in the Indre département
• Bretagne , in the Territoire-de-Belfort département
• Bretagne-d'Armagnac , in the Gers département
• Bretagne-de-Marsan , in the Landes département