None.
Mr. Obama does not have any biological brothers. He has one half-sister, Maya, from his mother's second marriage.
2
One
1 brother and 1 sister
She had a brother named Lazar and a sister named Aga.
He has one half-sister from his mother's second marriage in Indonesia, and a half-sister from his father's side in Africa.
Barack Obama has six half-siblings. One half-sister from his mother, one half-sister from his father, and four half-brothers from his father. Abo and Bernard Obama are also alleged to be his half-brothers but it is stated in his book Dreams of My Father that the Obama family doubts that they are the biological children of Barack Obama, Sr.Maternal Half-SisterMaya Soetoro-NgPaternal Half-SiblingsMalik ObamaAuma Obama (half-sister)Mark Okoth Obama NdesandjoDavid Ndesandjo (1967-1987)George Hussein Onyango ObamaAlleged Paternal Half-BrothersAbo ObamaBernard Obama
Barack Obama had no biological brothers or sisters. His father Barack Sr. abandoned him and his mother, and Barack was an only child at that time. After that, his mother remarried, and had one child, a daughter Maya, with her new husband. Thus, Barack has one step-sister. There are many reports that say he has as many as seven other step-brothers and sisters, since his biological father had relationships with other women; but it is not clear if Barack has met any of these siblings, most of whom live in countries other than the United States.
Shaka had a brother and sister from his mother. And I am not sure how many brothers and sisters on his dad side.
2 brothers
2 brothers & 1 sister
One sister, two brothers