In 2003 Oyo state elected senator there are 30 contested political parties that participated in the election
Election was took place on 12 and the list of 30 political parties are
AD
ANPP
APGL
APLP
ARP
BNPP
CPN
DA
GPN
JP
LDPN
MDJ
MMN
NAC
NAP
NCP
ND
NDP
NMMN
NNPP
NPC
NRP
PAC
PDP
PMP
PRP
PSD
PSP
UDP
UNPP
2003 Oyo state elected senator
Teslim Folarin represented Oyo Central and Robert Koleoso represented Oyo North won on the party of Peoples Democratic Party PDP and Abiola Ajimobi represented Oyo South won on the party of Alliance for Democracy AD
| PARTY | Elected candidate | Votes counts |
|---|---|---|
| AD | 1 | 338,420 |
| ANPP | 0 | 45,559 |
| APGA | 0 | 3,792 |
| APLP | 0 | 1,173 |
| ARP | 0 | 974 |
| BNPP | 0 | 502 |
| CPN | 0 | 525 |
| DA | 0 | 715 |
| GPN | 0 | 380 |
| JP | 0 | 476 |
| LDPN | 0 | 269 |
| MDJ | 0 | 360 |
| MMN | 0 | 304 |
| NAC | 0 | 447 |
| NAP | 0 | 481 |
| NCP | 0 | 4,021 |
| ND | 0 | 568 |
| NDP | 0 | 9,000 |
| NMMN | 0 | 498 |
| NNPP | 0 | 686 |
| NPC | 0 | 1,007 |
| NRP | 0 | 2,558 |
| PAC | 0 | 5,560 |
| PDP | 2 | 393,048 |
| PMP | 0 | 4,065 |
| PRP | 0 | 630 |
| PSD | 0 | 893 |
| PSP | 0 | 762 |
| UDP | 0 | 1,290 |
| UNPP | 0 | 10,382 |