What is Obama brothers name?

President Obama does not have any full siblings. However, he does have 8 half siblings. 7 are from his father's first and third marriages in Africa and 1 was born in Indonesia but now lives in Hawaii, from his mother's second marriage.

Half brothers on his father's side

in Africa

are:

Malik Obama (born 1958)

Abo Obama (maybe adopted, born 1968)

Bernard Obama (maybe adopted, born 1970)

Mark Ndesandjo (born by his father's third wife in 1965)

David Ndesandjo (deceased, born by his father's third wife, 1967-1987)

George Hussein Onyango Obama (perhaps illegitimate, born 1982)

Half sisters are:

Maya Soetoro-Ng, now in Hawaii, is from his mother's side.

Auma Obama, in Kenya, is from his father's side.