RBU may refer to:
- RBU (radio station), a longwave time signal
- RBU-6000 Smerch-2, a 213 mm caliber Soviet anti-submarine rocket launcher
- Rabindra Bharati University, West Bengal, India
- Rayat-Bahra University, Punjab, India
- Rock Band Unplugged, a video game
This disambiguation page lists articles associated with the title RBU.
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