Bulgarian National Radio (Bulgarian: Българско национално радио, Bǎlgarsko nacionalno radio; abbreviated to БНР, BNR) is Bulgaria's national radio broadcasting organisation. It operates two national channels and nine regional channels, as well as an international service (Radio Bulgaria) which broadcasts in 11 languages.

Listening to radio broadcasts from other countries having become popular in Bulgaria by the late 1920s, a group of engineers and intellectuals founded Rodno Radio ("Native, or Homeland, Radio") on 30 March 1930 with the aim of providing Sofia with its own radio station. Broadcasting began in June of the same year. Rodno Radio was renamed Radio Sofija in 1934.

On 25 January 1935, Boris III of Bulgaria signed a Decree nationalising Rodno Radio and making all broadcasting in Bulgaria a state-organised activity. In early 1936, a new and more powerful medium-wave transmitter sited near Sofia was joined by additional transmitting stations at Stara Zagora and Varna, giving Bulgarian National Radio countrywide coverage, and on 21 May of that year Radio Sofija began broadcasting internationally.

With the help of Soviet spare parts in 1946/1947, the first experimental transmissions of the so-called "Sofia II transmitter" were constructed by a technical brigade under the leadership of Eng. Georgi Nestorov.^{[citation needed]}

On 18 January 1960, by order of the Minister of Education and Culture Nacho Papazov, instructions were given that all the activities of radio and television should be in the spirit of the decisions of the congresses and plenums of the Communist Party. This marked the beginning of Bulgarian Radio in its modern form, including a common system of national, regional and foreign programmes.

Since 4 January 1971, the first station of Bulgarian Radio has been called "Horizont". The new programme was information and music and borrowed from the format of Radio France Inter. The second national station was "Hristo Botev" (named after the Bulgarian revolutionary and poet) and the third station was "Orpheus". The new literary and musical programme sought to introduce its listeners to the more complex aesthetic expressions and concerns in art. On 28 May 1971, the Orpheus programme was broadcast stereophonically for the first time in Bulgaria. In 1972, the new building of the Bulgarian Radio in Sofia, at 4 Dragan Tsankov Boulevard, was opened.

In the 1980s, for the first time the programmes "Before Everyone", "Good Day", "Sunday 150", "People, Roads, Cars", "Sport and Music", which became emblematic of the Bulgarian National Radio, went on air.

For the first time on 11 November 1989, Petko Georgiev gave the national address "Ladies and gentlemen, good day". In December 1992, due to budget cuts, the Orpheus station (which, since 1977, was broadcasting knowledge programmes daily from 10:00 to 12:00 and from 14:00 to 16:00) was closed down and some of their programmes were transferred to Hristo Botev Radio.