Kai Nielsen

Kai Nielsen is the name of:

• Kai Nielsen (footballer)
• Kaj Nielsen (footballer)
• Kai Nielsen (sculptor) (1882–1924), Danish sculptor
• Kai Nielsen (philosopher) (1926–2021), American, Canada-based professor of philosophy
• Sixten Kai Nielsen (born 1978), Danish artist
• Kai Ewans, born Kai Nielsen, Danish jazz musician