BU, Bu and variations may refer to:
Bulgaria (; Bulgarian: България, tr. Bǎlgariya), officially the Republic of Bulgaria (Bulgarian: Република България, tr.
Budapest (Hungarian: [ˈbudɒpɛʃt]) is the capital and by far the most populous city of Hungary and one of the largest cities in the European Union.
Buenos Aires ( or ; Spanish pronunciation: [ˈbwenos ˈai̯ɾes]) is the capital and most populous city of Argentina.
Bupropion is a medication primarily used as an antidepressant and smoking cessation aid. It is marketed as Wellbutrin and Zyban among other trade names.
Burkina Faso (US: bər-KEE-nə FAH-soh; French: [buʁkina faso]) is a landlocked country in West Africa.
Burning Man is an annual gathering that takes place at Black Rock City—a temporary city erected in the Black Rock Desert in Nevada.