Apenini (kwa Kiitalia: Appennini) ni safu ya milima inayounda uti wa mgongo wa rasi ya Italia kwa urefu wa km 1,200 na upana hadi km 250. Kwa kiasi kikubwa ni ya kijani, isipokuwa kwenye barafuto ya kilele kirefu zaidi, Corno Grande (mita 2,912 juu ya usawa wa bahari).. Vilele vingine 20, hasa vya Apenini ya Kati, vina kimo cha walau mita 1,900. Pederotti 2003, p. 75 "Apennines". Merriam-Webster's Geographical Dictionary (3rd ed.). Merriam-Webster, Incorporated. 2001. Blackie, Christina (1887). Geographical etymology, a dictionary of place-names giving their derivations. London: Murray.  Deecke, W (1904). Italy; a popular account of the country, its people, and its institutions (including Malta and Sardinia). London; New York: Macmillan Co.; S. Sonnenschein & Co..  Lunardi, Pietro (2008). Design and construction of tunnels: analysis of controlled deformation in rocks and soils (ADECO-RS). Berlin: Springer.  Margheriti, Lucia (August–October 2006). "The subduction structure of the Northern Apennines: results for the RETREAT seismic deployment".