Stuart Parker (born 30 July 1997) is a British tennis player.
In February and March 2021, Parker won two titles on the ITF circuit, both in Tunisia.
He was selected for a wildcard into the 2021 Queen's Club Championships – Doubles main draw partnering James Ward. He was also awarded a wildcard into the qualifying rounds of the singles and lost to Spain's Bernabé Zapata Miralles in straight sets.
He received a wildcard for the main draw of the 2021 Wimbledon Championships men's doubles alongside Ward, and a wildcard into the qualifying for the men's singles.
In September 2022, Parker won his maiden Challenger tournament in Nonthaburi, entering the main draw as a qualifier and defeating Arthur Cazaux by retirement in the final.
In August 2025, Parker won his second Challenger doubles title at the 2025 Crete Challenger III, paired with Filippo Moroni.
Parker is coached by former world No. 4 Thomas Enqvist at his base in Aix-en-Provence.