Barack Hussein Obama II is an American politician who served as the 44th president of the United States from 2009 to 2017. As a member of the Democratic Party, he was the first African-American president in U.S. history. Obama previously served as a U.S. senator representing Illinois from 2005 to 2008 and as an Illinois state senator from 1997 to 2004.

Barack Obama was born on August 4, 1961, at Kapiolani Medical Center for Women and Children in Honolulu, Hawaii. He is the only president born outside the contiguous 48 states. He was born to an 18-year-old American mother and a 27-year-old Kenyan father. His mother, Ann Dunham (1942–1995), was born in Wichita, Kansas, and was of English, Welsh, German, Swiss, and Irish descent. In 2007, it was discovered her great-great-grandfather Falmouth Kearney emigrated from the village of Moneygall, Ireland to the US in 1850. In July 2012, Ancestry.com found a strong likelihood that Dunham was descended from John Punch, an enslaved African man who lived in the Colony of Virginia during the seventeenth century. Obama's father, Barack Obama Sr. (1934–1982), was a married Luo Kenyan from Nyang'oma Kogelo. His last name, Obama, was derived from his Luo descent. Obama's parents met in 1960 in a Russian language class at the University of Hawaiʻi at Mānoa, where his father was a foreign student on a scholarship. The couple married in Wailuku, Hawaii, on February 2, 1961, six months before Obama was born.