1999 Osun State gubernatorial electionThe 1999 Osun State gubernatorial election occurred in Nigeria on January 9, 1999. The AD nominee Adebisi Akande won the election, defeating the APP candidate.Adebisi Akande emerged AD candidate.Electoral systemThe Governor of Osun State is elected using the plurality voting system.Primary electionAD primaryThe AD primary election was won by Adebisi Akande.ResultsThe total number of registered voters in the state was 1,496,058. Total number of votes cast was 547,077, while number of valid votes was 536,252. Rejected votes were 10,825.