Émilien is a French masculine given name and may refer to:

• Émilien of Nantes (died c. 725), French religious leader canonized as a saint
• Émilien Allard (1915–1977), Canadian carillonneur, pianist, clarinetist, and composer
• Émilien Amaury (1909-1977), French publishing magnate
• Émilien-Benoît Bergès (born 1983), French road racing cyclist
• Émilien Dumas (1804–1873), French scholar, paleontologist, and geologist
• Émilien Jacquelin (born 1995), French biathlete
• Émilien Lafrance (1911–1977), Canadian politician
• Émilien Morissette (born 1927), Canadian politician
• Émilien de Nieuwerkerke (1811–1892), French sculptor
• Émilien Pelletier (born 1945), Canadian politician
• Émilien Viennet (born 1992), French road and cyclo-cyclist