Darcy Byrne-Jones (born 20 September 1995) is an Australian rules footballer currently playing for the Port Adelaide Football Club in the Australian Football League (AFL). At 181 cm (5 ft 11 in) tall and 76 kg (168 lb), he plays as a running half-back who can move up forward or play as a wingman. He grew up in eastern suburbs of Melbourne. He played top-level junior football with the Oakleigh Chargers in the TAC Cup.

Port Adelaide took Byrne-Jones with the 52nd selection in the 2013 AFL draft. Since then, he has been a AFL Rising Star nominee, All-Australian and a John Cahill Medalist

He attended Scotch College, Melbourne with fellow draftees Jack Billings, Jake Kelly and Jack Sinclair. He played junior football for Camberwell Sharks in the Yarra Junior Football League.

Byrne-Jones made his AFL debut in the third round of the 2016 AFL season, kicking his first goal with blood running down his face due to a previous collision with a teammate.

Byrne-Jones won a NAB Rising Star nomination in Round 10 of the 2016 AFL Season after tallying 23 disposals while keeping Melbourne's Jeff Garlett to just 9 disposals and a goal.

In 2016, Port Adelaide rookie Darcy Byrne-Jones re-signed with the club until the end of 2018.

At the start of the 2018 AFL season Byrne-Jones signed another two-year contract extension to remain at Port Adelaide until the end of 2020.

Byrne-Jones had a breakout season in 2019, averaging 22.4 disposals - up from his career average of 17 and finishing second in Port Adelaide's best and fairest award. After the season Byrne-Jones signed a three-year contract extension which would keep him at the club until the end of 2023.