
Jean-Baptiste Accolay was a Belgian violin teacher, violinist, conductor, and composer of the romantic period. His best-known composition is his one-movement student concerto in A minor. It was written in 1868, originally for violin and orchestra.

Casimir von Blumenthal, was an Austrian violinist, composer and conductor who worked in Switzerland.

François van Campenhout was a Belgian opera singer, conductor and composer. He composed the music for the Belgian national anthem, "La Brabançonne".

Willem Werner Hubert "Willy" Claes is a Belgian politician who served as the eighth Secretary General of NATO, from 1994 to 1995. Claes was forced to resign from his NATO position after he was found guilty of corruption, which was uncovered during the investigation into André Cools' death. Claes was a member of the Flemish Socialist Party.

André Cluytens was a Belgian-born French conductor who was active in the concert hall, opera house and recording studio. His repertoire extended from Viennese classics through French composers to 20th century works. Although much of his career was spent in France, he was the first French conductor at Bayreuth in 1955; he also conducted The Ring and Parsifal at La Scala.

Maurice Corneil de Thoran, son of Paul Ernest de Thoran, was a Belgian musician.

Alain Crepin is a Belgian saxophonist, composer, music educator and conductor.

Désiré Defauw was a Belgian conductor and violinist.

Bernard Foccroulle is a Belgian organist, composer, conductor and opera director. He was born in Liège and studied at the Conservatoire de Liège. Initially, he became known as a member of the Ricercar Consort. He was president of the Jeunesses musicales, and in 1992, he was named director of the Théâtre royal de la Monnaie.

Charles-Louis-Joseph Hanssens, known under the name Hanssens the elder, was a Belgian violinist, composer, conductor and theatre director.

Philippe, Knight Herreweghe is a Belgian conductor.

René Jacobs is a Belgian musician. He came to fame as a countertenor, but later in his career he became known as a conductor of baroque and classical opera.

Maurice Kufferath was a Belgian music critic, librettist, cellist and conductor. A director of the Théâtre de la Monnaie in Brussels from 1900 to 1919, he was considered an icon of the music scene in Belgium.

Baron Henri Eduard Joseph de Lannoy, was a Flemish composer, teacher, conductor, and writer on music who spent most of his life in Austria. His compositions bridge the classical and early romantic styles. His full name and title in German was 'Heinrich Eduard Josef, Freiherr von Lannoy'.
Eduard Lassen was a Belgian-Danish composer and conductor. Although of Danish birth, he spent most of his career working as the music director at the court in Weimar. A moderately prolific composer, Lassen produced music in a variety of genres including operas, symphonic works, piano works, lieder, and choral works among others. His most successful pieces were his fine vocal art songs for solo voice and piano which often used elements of German and Belgian folk music.

Frédérique Petrides, , was a Belgian-American conductor and violinist. In 1933, she founded and conducted the Orchestrette Classique in New York. It consisted of women musicians and premiered works by then relatively untried American composers, such as Paul Creston, Samuel Barber and David Diamond, that are now widely played and celebrated. She also edited and published the ground-breaking newsletter, Women in Music, which highlighted the activities of professional women musicians throughout the ages.

François Ruhlmann was a Belgian conductor.

Jef van Hoof was a Flemish composer and conductor.

Jos Van Immerseel is a Belgian harpsichordist, pianist and conductor.

Paul Van Nevel is a Belgian conductor, musicologist and art historian. In 1971 he founded the Huelgas Ensemble, a choir dedicated to polyphony from the Middle Ages and the Renaissance. Van Nevel is known for hunting out little known polyphonic medieval works to perform.

Henri Adrien Marie Verbrugghen was a Belgian musician, who directed orchestras in England, Scotland, Australia and the United States.

Eugène-Auguste Ysaÿe was a Belgian violinist, composer and conductor and virtuoso. He was regarded as "The King of the Violin", or, as Nathan Milstein put it, the "tsar".