who was the last person to become a double winner of nobel prize?

Answer 1

For which category? The Office of the United Nations High Commissioner for Refugees seems to be the last to win two Nobel Prizes, in 1954 and then again in 1981. Both were the Peace Prize. The last individual to win two was Frederick Sanger, who took the 1958 and 1980 Chemistry Prizes. No one has won multiple times for the Literature Prize.