Dr. Thomas Francis Reason (4 July 1890 – 15 February 1935) was a Welsh cricketer. Reason was a right-handed batsman who bowled right-arm medium pace. He was born in Cadoxton, Glamorgan.Reason made his debut for Glamorgan in the 1914 Minor Counties Championship against Monmouthshire. He played one further match for the county on 1914, before the season was cut short due to the start of the First World War.