- XB stands for Xbox (Microsoft video game console)
- XB stands for Experimental Bomber (US military aircraft designation)
- XB stands for Halifax to Boston (routing designation; US Navy; Canada and US)
- XB stands for X-Band
- XB stands for Extra-Budgetary
- XB stands for Exchangeable Bonds (corporate finance)
- XB stands for X-Bracings (structures)
Abbreviations And Their Meaning