Police are appealing to a Skegness man to make contact and let his family know he is safe and well.
Marc Mellors, also known as Marc Saxton, (33), was last seen in the area of Claxby St Andrew, near Alford, between 2.30pm and 3.30pm on Friday, November 14.
Mr Mellors had left his car following a minor road traffic collision and was seen walking towards Alford, police say.
He is thought to have been wearing a grey hooded top, jeans and black canvas shoes.
Mr Mellors is 6ft tall, of medium build, and has short dark coloured hair. He has star-shaped tattoos on his left arm.
Anyone with information should contact Lincolnshire Police by dialling 101 and quoting incident number 245 of November 14.