Grant Stewart is an Australian born professional cricketer who plays for Kent County Cricket Club. He made his first-class cricket debut for Kent in September 2017 in the club's final County Championship match of the season, having signed his first professional contract at the end of August. He plays as a bowling all-rounder and has been described as "a big, strong lad who hits it a mile and bowls with reasonable pace" and as having "heaps of natural ability" as a cricketer.
Stewart was encouraged by Claydon to move to England in 2016 to play cricket in the Kent Cricket League, first with HSBC and then, in 2017, with Sandwich Town. He holds a European Union passport as his mother is Italian, qualifying him to play as a non-overseas player in England. Stewart moved to play for Adelaide University Cricket Club in South Australia during the 2016/17 season and returned to Kent in 2018. After taking 29 wickets during a series of successful performances for the Kent Second XI in 2017, Stewart signed his first professional contract with Kent at the end of August 2017. After making his first-class debut at the end of the 2017 season, he made his first List A appearance during Kent's pre-season campaign at the 2017–18 Regional Super50 competition in the West Indies, taking three wickets against Guyana at the Coolidge Cricket Ground in Antigua. After starting the season in the first XI, a hamstring injury limited his appearances for Kent at the beginning of their 2018 season. Stewart returned to the side in a day/night match against Middlesex at Canterbury in late June, taking his best bowling figures of 6/22 in a spell during the first evening of the match which reduced Middlesex to 54/9. The following day he scored his maiden first-class century, making 103 runs from 71 balls, the fastest County Championship century of the season, setting a Kent record for the highest score made by a number 10 batsman. Stewart and Ivan Thomasput on a century partnership for the last wicket, Thomas contributing only one run, equalling the lowest contribution made by a batsman to a 100 run partnership. Injuries limited Stewart's appearances for Kent in 2019 as well, with a hamstring injury suffered in August finally ending his season early. He signed a two-year contract extension in January 2020, keeping him at the club until 2022.