Kotel (Bulgarian: Ко̀тел, Greek: Κότελ) is a town in central Bulgaria, part of Sliven Province. It is the administrative centre of the homonymous Kotel Municipality. In 2016, the town had a population of 5,329.
Kotel is known for the numerous personalities of the Bulgarian National Revival who are somehow connected to the town, such as the politicians Alexander Bogoridi and Stefan Bogoridi, the enlighteners Sophronius of Vratsa and Petar Beron, public figure Gavril Krastevich, revolutionary Georgi Rakovski, as well as the World War II prime minister Dobri Bozhilov. It has a well-known music school and a large talented Romani population who can be found playing in restaurants and orchestras all over Bulgaria. Because of its situation in the mountains, Kotel is also a popular health resort for the cure of diseases such as TB. Kotel has been a center for carpet making and there is a museum devoted to the craft.