Jasen may refer to:
People Jasen (name) Jasen Mesić (born 1972), Croatian politician Karima Jasen
Places Jasen, Domžale, a village in the Municipality of Domžale, central Slovenia Jasen, Ilirska Bistrica, a village in the Municipality of Ilirska Bistrica, southwestern Slovenia Jasen (Ilidža), a village in Bosnia and Herzegovina Jasen (Trebinje), a village in Bosnia and Herzegovina Jasen, Montenegro Jasen (reserve), a nature reserve in Macedonia
See also Jasenov (disambiguation)