Christchurch Police are urgently appealing for sightings of Zac Poumos, aged 22.
Zac has been reported missing from his home and Police have significant concerns for his welfare.
He was last seen at his Halswell address at around 1.15pm today.
Zac is believed to be wearing blue jeans and a green/gray striped button-down long-sleeved flannel shirt, with bright red low-cut Converse shoes.
He has distinctive green and orange hair, which is shoulder-length.
If you think you may have seen Zac this afternoon, please call Police immediately on 111 and quote event number P052031142.