The 2008 Adamawa State gubernatorial by-election occurred on April 26, 2008.^[1][2][3] Incumbent PDP Governor Murtala Nyako won re-election in the supplementary election, defeating ACN candidate to emerge winner.^{[4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]}

Murtala Nyako emerged winner in the PDP gubernatorial primary election. His running mate was Bala James Ngilari.^[21]

The Governor of Adamawa State is elected using the plurality voting system.

There were 12 parties registered with the Independent National Electoral Commission to contest in the re-run election.^[2] The two main contenders were PDP Governor Murtala Nyako, who won the contest, and ACN's Markus Gundiri, who follows closely.^[22][23][24]