Jumma Khan Jr., also known by his nickname Friday, was a Pakistani footballer and later football referee, he played during the late 1930s and early 1940s. He was associated with Mohammedan Sporting.
In 1927, Khan started playing for his local club Muslim Club of Quetta. He then joined Mohammedan SC in 1939, where he featured in prominent tournaments such as the Durand Cup and the IFA Shield.
In 1937, Khan was also selected to play for the N.W.I.F.A team to play against the visiting side Islington Corinthians.
In 1942, Khan toured and played his retirement match at Aligarh with Mohammedan SC, to play a match against the Aligarh University. Khan managed to impress the then vice-chancellor of Aligarh Muslim University, Ziauddin Ahmad.
In 1939, Khan alongside fellow player Fakhru Hassan were selected to represent an IFA XI, where the team played several exhibition matches.
Following his retirement from active football, Jumma Khan Jr. became a football referee, officiating matches, including matches connected with the Pakistan Football Federation and supervised matches in Quetta.
Khan and his wife had 3 children, two sons and a daughter. He also owned a carpet business in Quetta, which was demolished during the 1935 Quetta earthquake. Due to his low income and revenue, Khan received financial aid from time to time by fellow government officers, Muhammad Musa, Khawaja Nazimuddin, and A. K. Fazlul Huq.
Khan died on 12 April 1991.