Nigeria has federal republic type of Government with executive power exercised by the president. The Government is influenced by Composition of upper and lower houses of a bicameral legislature. The President is the only head of state, the head of government, and the head of a multi-party system.
List of 63 Registered Political Parties in Nigeria with their Acronym for Presidential Elections 2015.
| S.No | Political Party | Party Acronym |
| 1 | Accord | A |
| 2 | Action Congress | AC |
| 3 | Action Alliance | AA |
| 4 | Action Party of Nigeria | APN |
| 5 | Advanced Congress of Democrats | ACD |
| 6 | African Democratic Congress | ADC |
| 7 | African Liberation Party | ALP |
| 8 | African Political System | APS |
| 9 | African Renaissance Party | ARP |
| 10 | All Nigeria People Party | ANPP |
| 11 | All Progressives Grand Alliance | APGA |
| 12 | Alliance for Democracy | AD |
| 13 | Allied Congress Party of Nigeria | ACPN |
| 14 | Better Nigeria Progressive Party | BNPP |
| 15 | Change Advocacy Party | CAP |
| 16 | Citizens Popular Party | CPP |
| 17 | Community Party of Nigeria | CPN |
| 18 | Congress for Democratic Change | CDC |
| 19 | Congress for Progressive Change | CPC |
| 20 | Democratic Alternative | DA |
| 21 | Democratic Front for Peoples Federation | DFPF |
| 22 | Democratic People Alliance | DPA |
| 23 | Democratic People Party | DPP |
| 24 | Freedom Party of Nigeria | FPN |
| 25 | Fresh Democratic Party | FRESH |
| 26 | Hope Democratic Party | HDP |
| 27 | Justice Party | JP |
| 28 | Kowa Party | KP |
| 29 | Labour Party | LP |
| 30 | Liberal Democratic Party of Nigeria | LDPN |
| 31 | Masses Movement of Nigeria | MMN |
| 32 | Mega Progressive People Party | MPPP |
| 33 | Movement for Democracy and Justice | MDJ |
| 34 | Movement for the Restoration and Defence of Democracy | MRDD |
| 35 | National Action Council | NAC |
| 36 | National Conscience Party | NCP |
| 37 | National Democratic Liberty Party | NDLP |
| 38 | National Democratic Party | NDP |
| 39 | National Majority Democratic Party | NMDP |
| 40 | National Movement of Progressive Party | NMPP |
| 41 | National Reformation Party | NRP |
| 42 | National Solidarity Democratic Party | NSDP |
| 43 | National Transformation Party | NTP |
| 44 | National Unity Party | NUP |
| 45 | New Democrats | ND |
| 46 | New Nigeria Peoples Party | NNPP |
| 47 | Nigeria Advance Party | NAP |
| 48 | Nigeria Elements Progressive Party | NEPP |
| 49 | Nigeria Peoples Congress | NPC |
| 50 | Peoples for Democratic Change | PDC |
| 51 | Peoples Democratic Party | PDP |
| 52 | Peoples Mandate Party | PMP |
| 53 | Peoples Party of Nigeria | PPN |
| 54 | Peoples Progressive Party | PPP |
| 55 | Peoples Redemption Party | PRP |
| 56 | Peoples Salvation Party | PSP |
| 57 | Progressive Action Congress | PAC |
| 58 | Progressive People Alliance | PPA |
| 59 | Republican Party of Nigeria | RPN |
| 60 | Social Democratic Mega Party | SDMP |
| 61 | United Democratic Party | UDP |
| 62 | United National Party for Development | UNPD |
| 63 | United Nigeria Peoples Party | UNPP |
| Candidate | Parties | Votes |
| Umaru Yar'Adua | Peoples Democratic Party (PDP) | 24638063 |
| Muhammadu Buhari | All Nigeria Peoples Party (ANPP) | 6605299 |
| Atiku Abubakar | Action Congress (AC) | 2637848 |
| Orji Uzor Kalu | Progressive Peoples Alliance | 608803 |
| Attahiru Bafarawa | Democratic Peoples Party (DPP) | 289324 |
| Chukwuemeka Odimegwu Ojukwu | All Progressives Grand Alliance | 155947 |
| Pere Ajuwa | Alliance for Democracy (AD) | 89241 |
| Chris Okotie | Fresh Democratic Party | 74049 |
| Patrick Utomi | African Democratic Congress (ADC) | 50849 |
| Ambrose Owuru | Hope Democratic Party | 28519 |
| Emmanuel Okereke | African Liberation Party (ALP) | 22677 |
| Lawrence Adedoyin | African Political System (APS) | 22409 |
| Habu Fari | National Democratic Party | 21934 |
| Maxi Okwu | Citizens Popular Party (CPP) | 14027 |
| Bartholomew Nnaji | Better Nigeria Party | 11705 |
| Emmanuel Obayuwana | National Conscience Party | 8229 |
| Olapade Agoro | National Action Council | 5752 |
| Mojisola Obasanjo | Nigerian Masses Movement | 4309 |
| Party | Votes | Seats |
| People's Democratic Party | 13312817 | 203 |
| Action Congress of Nigeria | 5135306 | 69 |
| Congress for Progressive Change | 4212283 | 38 |
| All Nigeria Peoples Party | 2900306 | 28 |
| Labour Party | 982647 | 8 |
| Democratic People's Party | 489074 | 1 |
| All Progressives Grand Alliance | 487753 | 7 |
| Accord | 335760 | 5 |
| People's Party of Nigeria | 133651 | 1 |
| Allied Congress Party of Nigeria | 87233 | 0 |
| Progressive Peoples Alliance | 77765 | 0 |
| People for Democratic Change | 62360 | 0 |
| National Transformation Party | 53574 | 0 |
| PDA | 30644 | 0 |
| African Democratic Congress | 28907 | 0 |
| Action Congress | 18732 | 0 |
| African Liberation Party | 15361 | 0 |
| Social Democratic Mega Party | 15236 | 0 |
| Kowa Party | 14736 | 0 |
| Mega Progressive Peoples Party | 14698 | 0 |
| Alliance for Democracy | 13041 | 0 |
| People's Action Congress | 12938 | 0 |
| National Conscience Party | 11681 | 0 |
| African Political System | 9681 | 0 |
| United Nigeria Peoples' Party | 9507 | 0 |
| National Solidarity Democratic Party | 9252 | 0 |
| People's Redemption Party | 9215 | 0 |
| ANC | 8556 | 0 |
| Democratic Front for People's Federation | 7390 | 0 |
| African Renaissance Party | 6958 | 0 |
| Change Advocacy Party | 6612 | 0 |
| United Democratic Party | 6015 | 0 |
| Citizens Popular Party | 5500 | 0 |
| Congress for Democratic Change | 5412 | 0 |
| Action Party of Nigeria | 3038 | 0 |
| Movement for the Restoration of Defence and Democracy | 2856 | 0 |
| Justice Party | 2617 | 0 |
| Hope Democratic Party | 2561 | 0 |
| Fresh Democratic Party | 2156 | 0 |
| People's Progressive Party | 844 | 0 |
| Advanced Congress of Democrats | 779 | 0 |
| NAP | 735 | 0 |
| Nigeria People's Congress | 693 | 0 |
| Allied Congress Party | 640 | 0 |
| People's Salvation Party | 616 | 0 |
| Freedom Party of Nigeria | 510 | 0 |
| Movement of the People Party | 495 | 0 |
| UPGA | 416 | 0 |
| Community Party of Nigeria | 392 | 0 |
| National Reformation Party | 308 | 0 |
| National Majority Democratic Party | 295 | 0 |
| DFPD | 274 | 0 |
| Republican Party of Nigeria | 256 | 0 |
| MCP | 229 | 0 |
| New Nigeria People's Party | 204 | 0 |
| National Movement of Progressive Party | 204 | 0 |
| NTA | 128 | 0 |
| People's Mandate Party | 127 | 0 |
| Better Nigeria Progressive Party | 120 | 0 |
| FNP | 43 | 0 |
| Movement for Democracy and Justice | 3 | 0 |
| Total | 28552140 | 360 |