Fauja Singh BEM is a British Sikh centenarian marathon runner of Punjabi Indian descent. He has beaten a number of world records in multiple age brackets, but none of his times have been ratified as records. His current personal best time for the London Marathon (2003) is 6 hours 2 minutes, and his marathon record, for age 90-plus, is 5 hours 40 minutes at the age of 92, at the 2003 Toronto Waterfront Marathon.

On October 16, 2011, Singh became the first 100-year-old to finish a marathon, completing the Toronto Waterfront Marathon. However, Guinness World Records refused to include Singh in its record book because he could not produce his birth certificate to prove his age. Birth records were not kept in India in 1911. He was however able to produce a passport listing his date of birth as 1 April 1911, and a letter from Queen Elizabeth II congratulating him on his 100th birthday.