BA, B.A., Ba, or ba may refer to:
Barack Hussein Obama II (US: bə-RAHK hoo-SAYN oh-BAH-mə; born August 4, 1961) is an American politician who served as the 44th President of the United States from 2009 to 2017. He is the first African American to have served as president.
Bangladesh ( or ; Bengali: বাংলাদেশ Bāṃlādēśa, pronounced [ˈbaŋlad̪eʃ], lit. "The country of Bengal"), officially the People's Republic of Bangladesh (গণপ্রজাতন্ত্রী বাংলাদেশ Gaṇaprajātantrī Bāṃlādēśa), is a country in South Asia.
Batman v Superman: Dawn of Justice is a 2016 American superhero film featuring the DC Comics characters Batman and Superman.
The Battle of Dunkirk was a military operation which took place in Dunkirk (Dunkerque), France, during the Second World War.
The fictional superhero Batman, who appears in American comic books published by DC Comics, has appeared in various films since his inception.
The Bahá'í Faith (Persian: بهائی Bahā'i) is a religion teaching the essential worth of all religions, and the unity and equality of all people.
Baltimore (, locally: [ˈbɔɫ.mɔɻ]) is the largest city in the U.S. state of Maryland, and the 29th-most populous city in the country.