The details are the player's name followed by the years in which he played for Northants in first-class, List A, or Twenty20 cricket. Note that many players represented other top-class teams besides Northants and that some played for the club in Minor Counties cricket before 1905. Current players are shown as active to the latest season in which they played for the club. The list excludes Second XI and other players who did not play for the club's first team, and players whose first-team appearances were in minor matches only.
Note:Where a player's name is preceded by a † symbol, the article is a redirect to this list.
↑Arthur James played two matches for Northants in June 1906. He took two wickets against Warwickshire in his second match, and scored a total of two runs in three innings.
↑Born at Northampton in 1905, Smith made a single first-class appearance for Northants, scoring 11 runs in his only innings and not taking a wicket in a May 1931 County Championship fixture against Nottinghamshire. He also played for the county's Club and Ground team during the same season. Smith died at Northampton in 1993, aged 88.