Look up bleu in Wiktionary, the free dictionary.
Bleu or BLEU may refer to:
- the French word for blue
- Three Colors: Blue, a 1993 film
- BLEU (Bilingual Evaluation Understudy), a machine translation evaluation metric
- Belgium–Luxembourg Economic Union
- Blue cheese, a type of cheese
- Parti bleu, 19th century political group in Quebec, Canada
- Bleu (blue-rare), synonymous with "extra rare", indicating a barely-cooked meat preparation; very red and cold
- Le Bleu, a 2001 album by Justin King