Axel Borup-Jørgensen (22 November 1924 – 15 October 2012) was a Danish composer.
Axel Borup-Jørgensen was born in Hjørring in Denmark, but grew up in Sweden. He studied piano at the Royal Danish Academy of Music in Copenhagen and instrumentation with Poul Schierbeck and Jørgen Jersild. He was one of the first Danish composers to go to the Darmstädter Ferienkurse, but he never composed serial music. His prolific output includes music for orchestra, chamber music, and vocal and instrumental works. Among his important works are the Nordisk Sommerpastorale, Op. 51, which won a composition competition arranged by DR (Danish Radio) in 1965, and Marin, a large orchestral work that includes 44 individual string lines and is regarded as a masterpiece. He died in Birkerød.