Fredrik Midtsjø (born 11 August 1993) is a Norwegian professional footballer who plays as a midfielder for Dutch Eredivisie club AZ.
Midtsjø began his professional career at Norwegian club Rosenborg in 2010. After loan spells at Ranheim and Sandnes Ulf he became a regular in their team, making 96 league appearances and scoring 12 goals for Rosenborg. He signed for AZ in 2017.
Midtsjø made his full international debut in 2016, but remains to make an appear in a competitive match.