John (Jack) Small junior (7 October 1765 at Petersfield, Hampshire – 21 January 1836 at Hambledon) was an English cricketer who played for the Hambledon Club. He is also associated with Hampshire, Marylebone Cricket Club, Kent and Surrey.
Jack Small made his debut in 1784, his career continuing until 1811. He was noted as "a sound batsman" but should not be compared with his father John Small senior, who was still playing when Jack started.
Jack Small had over 100 recorded appearances by the end of the 1800 season. His two highest recorded scores were 95 for Richard Leigh's XI v Sir Horatio Mann's XI at Dandelion Paddock, Margate in 1795 and 88 for Lord Yarmouth's XI v R Whitehead's XI at Lord's in 1799, both first-class matches.
- H S Altham, A History of Cricket, Volume 1 (to 1914), George Allen & Unwin, 1962
- Derek Birley, A Social History of English Cricket, Aurum, 1999
- Arthur Haygarth, Scores & Biographies, Volume 1 (1744-1826), Lillywhite, 1862
- Ashley Mote, John Nyren's "The Cricketers of my Time", Robson, 1998
- Ashley Mote, The Glory Days of Cricket, Robson, 1997