BA, B.A., Ba, or ba may refer to:
Barack Hussein Obama II ( (listen); born August 4, 1961) is an American attorney and politician who served as the 44th president of the United States from 2009 to 2017. A member of the Democratic Party, he was the first African American to be elected to the presidency.
Basketball is a team sport in which two teams, most commonly of five players each, opposing one another on a rectangular court, compete with the primary objective of shooting a basketball (approximately 9.4 inches (24 cm) in diameter) through the defender's hoop (a basket 18 inches (46 cm) in diameter mounted 10 feet (3.048 m) high to a backboard at each end of the court) while preventing the opposing team from shooting through their own hoop.
Bangladesh (; Bengali: বাংলাদেশ Bangladesh [ˈbaŋladeʃ] (listen), lit. "The country of Bengal"), officially the People's Republic of Bangladesh (গণপ্রজাতন্ত্রী বাংলাদেশ Gônoprojatontri Bangladesh), is a country in South Asia.
Bastille Day is the common name given in English-speaking countries to the national day of France, which is celebrated on 14 July each year.
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 ( BAWL-tih-mor) is the most populous city in the U.S. state of Maryland, as well as the 30th most populous city in the United States, with a population of 602,495 in 2018 and also the largest such independent city in the country.
Bangalore, officially known as Bengaluru ([ˈbeŋɡəɭuːɾu] (listen)), is the capital of the Indian state of Karnataka.