Kigezo:Nigerian Heads of State
| First Republic |  | |
|---|---|---|
| Military regime | ||
| Second Republic | ||
| Military regime | ||
| Fourth Republic | ||
* civilian; headed transition to abortive Third Republic | ||
| First Republic | | |
|---|---|---|
| Military regime | ||
| Second Republic | ||
| Military regime | ||
| Fourth Republic | ||
* civilian; headed transition to abortive Third Republic | ||