| Nikolai Todorov | |
| Office: | Chairperson of the National Assembly |
| Term Start: | 17 July 1990 |
| Term End: | 2 October 1991 |
| Predecessor: | Stanko Todorov |
| Successor: | Stefan Savov |
| Office1: | Chairman (President) of Bulgaria |
| Term Start1: | 17 July 1990 |
| Term End1: | 1 August 1990 |
| Predecessor1: | Stanko Todorov (Acting) |
| Successor1: | Zhelyu Zhelev |
| Birth Date: | 6 June 1921 |
| Birth Place: | Varna, Kingdom of Bulgaria |
| Death Place: | Sofia, Bulgaria |
| Party: | Independent |
| Otherparty: | Communist Party (before 1990) |
| Children: | 3 including Maria Todorova b.1949 |
| Alma Mater: | Sofia University |
Nikolai Todorov Todorov (Bulgarian: Николай Тодоров Тодоров; June 6, 1921 – August 27, 2003) was a Bulgarian historian.[1] In 1990, he briefly served as acting president of Bulgaria.
Todorov was born in Varna and, as he noted himself, he was of Greek descent.[2] Todorov was inspired to go into politics after the trial of Traycho Kostov, whom he had shared a prison cell with during World War II.[3] After a distinguished academic career, which included a position at the National and Kapodistrian University of Athens, he joined the Bulgarian Ministry of Foreign Affairs. He would later serve as the Bulgarian representative to UNESCO and the Bulgarian Ambassador to Greece (1978–1983). Following Bulgaria's departure from Communism, Todorov became Speaker of the National Assembly of Bulgaria, leading him to serve as acting president.
Todorov was married with three children. He is the father of Maria Todorova.