TBO

TBO may refer to:
 * TBO (comics), a long-running Spanish comic book magazine
 * IATA airport code for Tabora Airport
 * Time between overhaul, a measure of an aircraft engine's overall economics
 * Total benefits of ownership
 * Operation Assistance Force (Tenaga Bantuan Operasi) of Indonesian National Armed Forces
 * Toluidine blue O, a purple-staining chemical used clinically and for histology
 * TBO.com, a group of travel companies that recently opens their IPO for public.