rbw or RBW may refer to:
- Revolution British Wrestling
- Red Blooded Woman, a 2004 single by Australian pop/dance singer Kylie Minogue
- a widely used acronym for US District Court Judge Reggie B. Walton
- Relativistic Breit–Wigner distribution, a probability distribution that models resonances in high-energy physics
- Resolution Bandwidth, electronic signal term used in spectrum analyzers and EMI / EMC testing.