Thomas Benjamin Lancashire (born 2 July 1985) is an English middle-distance runner. Lancashire represented Great Britain at the 2008 Summer Olympics in the 1500 m.

Lancashire was educated at Turton School in Bromley Cross, Bolton.^{[citation needed]} As an all round sportsman he previously took part in many sports including football, swimming, cricket, ice hockey and snowboarding. He is a life member of Bolton Harriers and regularly races in club colours.

He attributes his early success to his first coach Jack Caldwell who brought him into the sport. He began his athletics career after being spotted running in a school cross country race and being asked to train with Bolton Harriers.

In 2002 he won the English Schools' Athletics Championships 1500 meters title, being beaten by Lee Emanuel in his heat before beating him in the final.

In 2003, he represented Great Britain at the European Junior Championships, in the 1500 meters. The event was a straight final and he won a silver medal, finishing just over half a second behind the winner. He retained his English Schools' Athletics Championships 1500 meters title that year, winning his heat on his way to recording 3:47.78 in the final and winning the final by almost four seconds. He also won the AAA British Junior 1500 meters title by over 6 seconds.

In 2004, he competed at the World Junior Championships, running in the 1500 meters. He set a personal best of 3:42.48 in his heat, finishing third in the final automatic qualification spot. In the final he finished sixth, running a slower time than in his heat. He retained his British Junior title, winning by over eight seconds.

He also moved to America that year to study at Florida State University, which he left in 2007.

In 2005, he again represented Great Britain, this time at the European U23 Championships in the 1500 meters. He came fourth in the first heat, qualifying automatically for the final. In the final he finished last, by over 15 seconds.