Names of countries in seven languages
| Finnish | Nigeria Nigerian liittotasavalta |
| Swedish | Nigeria Förbundsrepubliken Nigeria |
| North Saami | Nigeria Nigeria lihttodásseváldi |
| English | Nigeria Federal Republic of Nigeria (the) |
| French | Nigéria (le); parallel name Nigeria (le) République fédérale du Nigéria (la); parallel name République fédérale du Nigeria (la) |
| German | Nigeria (n.) Bundesrepublik Nigeria (die) |
| Russian | Нигерия Федеративная Республика Нигерия |
Abbreviations
| abbr. name | abbreviated name |
| AT | Austria |
| CH | Switzerland |
| DE | Germany |
| f. | feminine |
| fmr | former |
| FR | France |
| GB | United Kingdom |
| hist. | historical |
| in dipl. relations | in diplomatic relations |
| lang. planning | language planning |
| m. | masculine |
| n. | neuter |
| offic. | official |
| oft. | often |
| pl. | plural |
| prev. | previously |
| UN | the United Nations |
| unoffic. | unofficial |
| * | not independent |