Stimigliano is a (municipality) in the Province of Rieti in the Italian region of Latium, located about north of Rome and about southwest of Rieti. As of 1 January 2018, it had a population of 2,321 and an area of .
Stimigliano borders the following municipalities: Collevecchio, Forano, Ponzano Romano, Sant'Oreste, Tarano.