Preben Juul Fabricius (1931–1984) was a Danish furniture designer who worked together with Jørgen Kastholm.
During the 1960s, the pair designed a wide range of pieces for the German Alfred Kill who had a furniture factory in Fellbach near Stuttgart.
Fabricius was trained as a cabinetmaker by Niels Vodder before attending the School for Interior Design where he studied under Finn Juhl.
In 1961, the pair set up a design studio in a Gentofte cellar without any firm arrangements with manufacturers.
Kill had a reputation for high quality but initially Favricius and Kastholm were not keen to design furniture for factory production.