1999 Nigerian Senate elections in Osun State

The 1999 Nigerian Senate election in Osun State was held on February 20, 1999, to elect members of the Nigerian Senate to represent Osun State. Moji Akinfenwa representing Osun East, Sunday Fajinmi representing Osun West and Adebayo Salami representing Osun Central all won on the platform of the Alliance for Democracy.

Osun East
The election was won by Moji Akinfenwa of the Alliance for Democracy.

Osun West
The election was won by Sunday Fajinmi of the Alliance for Democracy.

Osun Central
The election was won by Adebayo Salami of the Alliance for Democracy.