The 2003 Katsina State gubernatorial election occurred on 19 April 2003.^{[1][2][3][4][5][6]} PDP candidate Umaru Musa Yar'Adua won the election, defeating ANPP Nura Khalil and 5 other candidates.^{[7][8][9][10][11][12][13][14][15][16]}

Umaru Musa Yar'Adua from the PDP won the election.^{[17][18][19][20][21][22][23][24][25][26][27]} 7 candidates contested in the election.^{[28][29][30][31][32][33][34][35][36][37][38]}

The total number of registered voters in the state was 2,567,245, total votes cast was 1,721,067, valid votes was 1,636,824 and rejected votes was 84,243.^{[39][40][41][42][43][44][45][46][47][48]}

• Umaru Musa Yar'Adua, (PDP)- 892,340
• Nura Khalil, ANPP- 742,582
• Amani Mohammed Bashir B. Y., PRP- 492
• Yakubu Sada Abubakar, NDP- 463
• Shehu Isa Kaita, MDJ- 425
• Aminu Abdulmumini, UNPP- 346
• Mohammed Tajo Usman, NCP- 176