Kiilerich is a Danish surname. Notable people with the surname include:
Bente Kiilerich (born 1954), Danish-born Norwegian scholar of art history Karsten Kiilerich (born 1955), Danish film and television director, screenwriter, and animator Kasper Kiilerich (born 2005), Danish footballer Jakob Kiilerich (born 2000), Danish footballer Malte Kiilerich (born 1995), Danish footballer Reno Kiilerich (born 1976), Danish heavy metal drummer Sune Kiilerich (born 1990), Danish footballer