SRB or Srb may refer to:
Places Serbia (ISO 3166-1 alpha-3 country code SRB), a country in Central/Southeastern Europe Srb, a village in Croatia
Organizations Special Response Battalion, law enforcement and internal security unit of the Bangladesh Police. State Research Bureau (organisation), former Ugandan intelligence agency Single Resolution Board, EU banking authority
Science and technology Storage Resource Broker, a computer data grid management system Sulfate-reducing bacteria Sulfur-reducing bacteria Service Request Block, in IBM operating systems Solid rocket booster SRb, a subtype of semiregular variable star Swedish Red-and-White or , a breed of cattle
Other uses Sonic's Rendezvous Band, Ann Arbor, Michigan, US Srb (surname) Sora language (ISO 639-3 code srb), a Munda language of India
See also