Dimitrovgrad (Serbian: Димитровград) alternatively Caribrod (Bulgarian: Цариброд, romanized: Tsaribrod) is a town and municipality located in the Pirot District of southeastern Serbia.

The idea was abandoned when Yugoslav leader Josip Broz Tito failed to reach agreements with Joseph Stalin (Tito–Stalin split); however, Dimitrov himself did not become unpopular in Yugoslavia from the breakdown and subsequently, the name of the town continued to be in honour of him despite many citizens themselves having preferred Caribrod.

[9] An Ottoman military base operated in the west of Dimitrovgrad prior to the Balkan nations full independence.

The Serbian and Bulgarian Prime ministers met at the then Tsaribrod in 1912 to discuss the disputed territories in Macedonia.

[4] Regardless of ethnic self-identification, most of the town's population speaks a South Slavic dialect usually called Torlak which includes linguistic features of both Serbian (especially phonology) and Bulgarian (postposed definite articles and lack of the infinitive verb form), as well as some Macedonian language vocabulary.