Cesi or CESI may refer to:
Places Cesi, Serravalle di Chienti, a frazione (hamlet) in Marche, Italy Cesi, Terni, a frazione (hamlet) in Umbria, Italy
Other uses Czechs, Czech people Cesi (surname) CESI (Education) European Confederation of Independent Trade Unions Centro Elettrotecnico Sperimentale Italiano Centre for Economic and Social Inclusion, a British think-tank
See also CESIS, Italian security website