Harry Thomson Jones (28 April 1925 – 5 December 2007), known as Tom Jones, was an English racehorse trainer. He was successful in National Hunt racing, training the winners of 12 Cheltenham Festival races before switching to flat racing and going on to train the winners of British Classic Races.

Harry Thomson Jones was born in Amesbury, Wiltshire, England on 28 April 1925, as the only child to Lieutenant-Colonel Victor Harry Jones, a Filipino, and his wife, Emily Charlotte (née Thomson), an American. His Christening took place in Amesbury on 2 August 1925.

Jones was educated at Eton College. After graduating, he joined the British Army, serving during World War II. Upon being demobbed, he worked as an assistant to Bob Fetherstonhaugh at the Curragh.

Jones was a distant cousin of the racehorse trainer Charlie Brooks' mother.

Jones was first licensed as a racehorse trainer at Newmarket, Suffolk in 1951. Amongst his notable National Hunt horses were Tingle Creek, winner of 11 races and a specialist at Sandown Park Racecourse, and Frenchman's Cove, winner of the 1962 Whitbread Gold Cup and 1964 King George VI Chase.

Jones had begun to concentrate on flat racing by the 1970s and trained his first Classic winner when Athens Wood won the 1971 St. Leger. In 1982, he trained Touching Wood to win the St. Leger and Irish St. Leger for Maktoum al Maktoum, the first Classic winner owned by the Maktoum family. Sheikh Hamdan al Maktoum became his principal owner, at one stage looking after 80 horses for Sheikh Hamdan, and the most successful horse he trained for Sheikh Hamdan was Al Bahathri, winner of the Lowther Stakes in 1984 and the Irish 1,000 Guineas, Coronation Stakes and Child Stakes in 1985.

Jones' last winner came when Agdistis won at Worcester Racecourse on 12 October 1996. He retired before the end of the year.

Jones had authored a poem.