Remanzacco () is a (municipality) in the Regional decentralization entity of Udine in the Italian region of Friuli-Venezia Giulia, located about northwest of Trieste and about northeast of Udine. As of 31 December 2004, it had a population of 5,774 and an area of .
The municipality of Remanzacco contains the (boroughs) Ziracco, Selvis, Orzano, and Cerneglons.
Remanzacco borders the following municipalities: Faedis, Moimacco, Povoletto, Pradamano, Premariacco, Udine.