Georgi Ivanov Markov (Bulgarian: Георги Иванов Марков; March 1, 1929 – September 11, 1978) was a Bulgarian dissident writer.

Markov originally worked as a novelist and playwright in his native country, then governed by a communist regime under chairman Todor Zhivkov, until his defection from Bulgaria in 1969. After relocating to the West, he worked as a broadcaster and journalist for the BBC World Service, the US-funded Radio Free Europe, and Germany's Deutsche Welle. Markov used such forums to conduct a campaign of sarcastic criticism against the incumbent Bulgarian regime. As a result of this, it has been speculated that the Bulgarian government may have decided to silence him, and may have asked the KGB for help.[1] He died as a result of