Pancho Haralanov Vladigerov (or Wladigeroff, or Vladiguerov, or Vladigueroff; 13 March 1899 – 8 September 1978) was a Bulgarian composer, pedagogue, and pianist.

Vladigerov is arguably the most influential Bulgarian composer of all time. He was one of the first to successfully combine idioms of Bulgarian folk music and the West European art music tradition. Part of the so-called second generation of Bulgarian composers, he was among the founding members of the Bulgarian Contemporary Music Society (1933), which later became the Union of Bulgarian Composers. Vladigerov marked the beginning of a number of genres in Bulgarian music, including the violin sonata and the piano trio. He was also a very respected pedagogue; his students include practically all notable Bulgarian composers of the next generation, as well as the pianist Alexis Weissenberg. 

Vladigerov was born in Zürich, Switzerland, but lived in Shumen. His mother Dr. Eliza Pasternak was a Russian Jew and a relative of the famous writer Boris Pasternak. His father Dr. Haralan Vladigerov was a Bulgarian lawyer. Pancho Vladigerov played the piano and composed since early age. In 1910, two years after his father's early death, Vladigerov and the rest of his family moved to Sofia where Pancho started studying composition with Dobri Hristov, the most distinguished Bulgarian composer of his generation.

Pancho's maternal grandfather, Leon Pasternak, a Russian Jew who left Odessa and settled in Zurich a few years before Pancho's birth, was a very influential figure on Pancho's musical developement and later success. The grandfather, a mathematician by profession, champion chess player, and an amateur musician and composer, used to play the violin with Pancho and his twin brother. Based on a Jewish tune his grandfather thought him, Vladigerov composed in 1950 his great symophony, the "Jewish Poem", Opus 47. This symphony received in 1952 the highest honor given by the Bulgarian Government to an artist, the Dimitrov Prize,[3] and earned him the admiration of his fellow musicians:

"A work like this is written only once in a hundred years." Dmitri Shostakovich exclaimed.

In 1912 Vladigerov's mother managed to obtain a governmental scholarship for her children to study in Berlin where Pancho and his twin brother, the violinist Luben Vladigerov, were enrolled at the Staatliche Akademische Hochschule für Musik (now part of the Berlin University of the Arts), which was under the auspices of the Academy of Arts. Pancho Vladigerov studied music theory and composition with Paul Juon and piano with Karl Heinrich Barth. In 1920 he graduated from the Academy after having studied piano also with Leonid Kreutzer, composition with Friedrich Gernsheim and Georg Schumann. He twice won the Mendelssohn Prize of the Academy (in 1918 and 1920).

After his graduation Vladigerov became music director at Deutsches Theater in Berlin and worked with the famous theatre director Max Reinhardt. In 1932, after much hesitation, he decided to return to Sofia where he was appointed professor in Piano, Chamber Music and Composition at the State Academy of Music, which is now named after him.

Vladigerov composed in a variety of genres including an opera (Tsar Kaloyan, to a libretto by Nikolai Liliev and Fani Popova-Mutafova), ballet, symphonic music, five piano concertos, two violin concertos, chamber music including string quartet, trio (violin, cello and piano), works and transcriptions for violin and piano and numerous opuses for solo piano, 38 transcriptions of instrumental pieces for instrument and piano, 13 late transcriptions of his earlier works for two pianos, fifty folksong concert arrangements for voice and piano/orchestra, 20 songs for voice and piano, ten choral songs with piano/orchestra, incidental music for the performances of the Deutsches Theater in Berlin, the Theater in der Josefstadt in Vienna, and the National Theatre in Sofia.

Vladigerov gained considerable fame in Europe in the 1920s when many of his pieces were published by Universal Edition in Vienna and released on LPs by the German recording company Deutsche Grammophon before being performed throughout Europe and the USA. As pianist and composer he toured most of the European countries performing mainly his own works. In 1969 he was awarded the Herder Prize by the University of Vienna. The Bulgarian recording company Balkanton released an edition of his stage and symphony music in four sets of seven LPs each; however, very small portion of his works is currently available on CDs.

Vladigerov's music has been admired by such diverse personalities as Richard Strauss, Dmitri Shostakovich, and Aram Khachaturian. It has been performed by artists such as Alexis Weissenberg, David Oistrakh, Emil Gilels and, most recently, Marc-André Hamelin; however, he still remains a largely unknown name except in his home country.

Vladigerov's most performed and emblematic work is unquestionably Vardar Rhapsody, also known as Bulgarian Rhapsody. Originally written for violin and piano, it was later orchestrated and arranged for various instruments. A fiery patriotic work, it has become, in the words of an admiring critic "the Bulgarian equivalent of Chopin's Polonaise in A Major".

Pancho Vladigerov died in 1978 in Sofia. His house at No. 10, Yakubitsa, has been transformed into a museum. His son Alexander Vladigerov (1933–1993) and grandchildren Pancho Vladigerov Jr., Alexander Wladigeroff, and Konstantin Wladigeroff have become respected musicians in their own right.

An international music competition held in Shumen since 1986 is named after Vladigerov. In the autumn of 2006 Pancho Vladigerov Jr. founded The Intellectual Legacy of Pancho Vladigerov Foundation. Its main aim is to preserve, protect and popularise Pancho Vladigerov's tangible and intangible heritage.