The public have been asked to help in locating a Queensland man who hasn’t been heard from in more than three weeks.

The family of a Queensland man missing for more than three weeks have asked the public for help in locating him.

Michael Kime, aged 49, was last seen in Toowoomba on the afternoon of February 5 and has not contacted family and friends since then, police said on Friday.

Mr Kime is believed to be travelling in a white 1998 Toyota Hilux, registration 895RNA, and may be travelling in the Cairns area.

He is described as approximately 193 centimetres tall, Caucasian in appearance with a proportionate build, with short and receding grey hair, as well as a grey beard and moustache.

Anyone with information is asked to contact Crime Stoppers.