Jef is a Dutch-language masculine given name primarily used in Belgium. It is a short form of Jozef/Josef. People with the name include:Jef Billings, American figure skating costume designer Jef Boeke, American geneticist Jef Bruyninckx (1919–1995), Belgian film actor, editor and director Jef Caers, Belgian geostatistician Jef Colruyt, Belgian businessman Jef Delen, Belgian footballer Jef Demuysere (1907–1969), Belgian cyclist Jef Denyn (1862–1941), Belgian carillon player Jef Dutilleux (1876–1960), Belgian painter Jef Elbers, Belgian singer, script writer, and political activist Jef François (1901–1996), Belgian Nazi collaborator Jef Gaitan, Filipino actress Jef Geeraerts (1930–2015), Belgian writer Jef Geys (1934-2018), Belgian artist Jef Gilson (1926–2012), French pianist, arranger, composer and big band leader Jef Jurion, Belgian footballer Jef Labes, American keyboardist Jef Lahaye (1932–1990), Dutch cyclist Jef Lambeaux (1852–1908), Belgian sculptor Jef Last (1898–1972), Dutch poet, writer, translator and cosmopolitan Jef Lataster (1922–2014), Dutch long-distance runner Jef Le Penven (1919–1967), French composer Jef Leempoels (1867–1935), Belgian painter Jef Lowagie (1903–1985), Belgian cyclist Jef Maes (1905–1996), Belgian composer and violist Jef Mallett, American comics artist Jef Martens, Belgian DJ known as "Basto" Jef McAllister, American journalist, author and lawyer Jef Mermans (1922–1996), Belgian footballer Jef Murray (1960–2015), American fantasy artist and author Jef Neve, Belgian pianist and composer Jef Nys (1927–2009), Belgian comic book creator Jef Planckaert (1934–2007), Belgian cyclist Jef Raskin (1943–2005), American human–computer interface expert Jef Scherens (1909–1986), Belgian cyclist Jef Tavernier, Belgian politician Jef Valkeniers, Belgian physician-neuropsychiatrist and politician Jef Van Campen, Belgian post-impressionistic painter Jef Van Damme, Belgian politician Jef van de Wiele (1903–1979), Belgian Nazi politician Jef Van Der Linden (1927–2008), Belgian footballer Jef Van der Veken (1872–1964), Belgian art restorer, copyist and art forger Jef Van Gool, Belgian footballer Jef van Hoof (1886–1959), Belgian composer and conductor Jef Van Meirhaeghe, Belgian cyclist Jef Vliers (1932–1995), Belgian footballer