Shueib Aden, 21, was last seen at around 3:10pm today.
A West Yorkshire Police spokesperson said: 'Police are becoming increasingly concerned about him.
“Shooib is not familiar with the Bradford area and is hardly dressed for the weather.
“We are asking for the public's help in obtaining information regarding recent sightings and his whereabouts.”
West Yorkshire Police said he was approximately 5ft 11in tall, very slim, clean-shaven, and had short black hair.
He was last seen wearing a burgundy zip top, gray tracksuit bottoms and black trainers.
Anyone with information regarding his whereabouts should contact police immediately, quoting log 1087 of December 11.