Adrian Timmis (born 20 June 1964) is an English former professional racing cyclist.

In 1981 he rode in the British National Track Championships. He then represented Britain in the team pursuit event at the 1984 Olympic Games in Los Angeles. Between 1986 and 1995, he was a professional cyclist. He rode the Tour de France in 1987, and competed in the international Paris-Nice race, Criterium International, Tour de Romandie, Liège–Bastogne–Liège, La Flèche Wallonne, Amstel Gold and the Het Volk.

Towards the end of its professional career, he began mountain biking in 1989, while going forward to ride for Raleigh Cycles.

He worked for the Linda McCartney Foods team and the British National team in the World Championships, Olympic Games and Commonwealth Games.