Blu
Blu or BLU may refer to:
- Blu Cantrell (born 1976), American singer
- Blu (artist), a visual artist
- Blu (comic strip character), a character from Monica's Gang
- BLU (company), a manga production company
- Blu (rapper), a rapper from Los Angeles, California
- Blu Products, a mobile phone manufacturer
- David Blu (born 1980), American–Israeli basketball player
- Quadra Blu, a character from Max Rep comics
- Blu, a fictional Spix's Macaw in the 2011 film Rio and its sequel
- Blu, a brand of electronic cigarette owned by Lorillard Tobacco Company
- Bomb Live Unit (as opposed to Bomb Dummy Unit), an acronym used for several American bombs, including:
- BackLight Unit part of a backlit liquid-crystal display used to dynamically expand the display contrast