2024–25 Adelaide United FC season

The 2024–25 season will be the 21st in the history of Adelaide United Football Club since its establishment in 2003. The club will participate in the A-League Men for the 20th consecutive season and will make their 10th consecutive appearance in the Australia Cup.

Adelaide United's start to the season was headlined by the loss of Nestory Irankunda, who joined Bayern Munich after agreeing terms with the club in November 2023 for a record domestic Australian transfer fee and last season's top scorer, Hiroshi Ibusuki, who netted 15 goals across the 2023–24 season.

Pre-season
On 10 May 2024, 20-year-old goalkeeper Ethan Cox extended his contract for a further three years. Cox was promoted from the NTC in 2019 and made 19 appearances for the NPL team in their title-winning season before making his senior debut in the final round of last season in a dead rubber match.

On 14 May, the departure of Ben Halloran was announced. Two days later, Hiroshi Ibusuki departed the club by mutual consent. Hiroshi was last season's top scorer with 15 goals in 26 matches and intended to remain with the club; however, his request for a longer-term deal was rejected. On 17 May, Nick Ansell, Lachlan Barr, Harry Van der Saag, and Ben Warland were released following the expiration of their contracts.

On 27 May, former Dutch international Ernest Faber was announced as the club's new technical director in order to improve the club's coaching and recruitment. The announcement came a few months after a strategic partnership with PSV Eindhoven was finalised.

On 28 May, three Adelaide United players, Luka Jovanovic, Bailey O'Neil, and Jonny Yull, were selected for the Young Socceroos' squad for their June tour of South America. The next day, Nestory Irankunda was named as one of eight A-League Men players to feature in the Socceroos' squad for their final second round World Cup qualifiers against Bangladesh and Palestine. This was Irankunda's first official call-up to the squad, having previously joined as a train-on player in March 2023. The callup came a week after Irankunda publicly commented that he would consider his international future with other nations if he wasn't called up to the Socceroos squad, as he is eligible to represent Burundi or Tanzania.

On 4 June, Spaniards Isaías and Javi López both signed a one-year contract extension ahead of their joint retirement at the end of the season. Isaías has had two spells at the club since 2013 and was apart of the club's title winning season as well as their subsequent FFA cup win in 2018. Both players will study for coaching badges.

On 6 June, 19-year-old Newcastle Jets centre-forward, Archie Goodwin, signed with Adelaide United on a four-year contract. Goodwin made his debut for Newcastle at the age of 16 and has played 44 matches in the A-League Men, scoring seven goals in that period, although he suffered numerous injuries during his four years with the Jets.

On 21 June, 24-year-old winger, Dylan Pierias, signed with the club on a three-year contract, following his expiration of his contract with Western Sydney Wanderers. Pierias has played for numerous clubs around the A-League and has represented Australia's youth sides on 16 occasions, most recently in 2021.

On 25 June, Musa Toure was signed by Ligue 2 side Clermont Foot for an undisclosed fee. Musa, the youngest of brothers Al Hassan and Mohamed, played 11 games for the senior side across two seasons since signing with the youth team for four years. The next day, Austin Ayoubi signed a two-year contract extension with the club.

On 30 June, 33-year-old Dutch centre-back, Bart Vriends, signed a two-year contract with Adelaide. Vriends made 192 league appearances for Sparta Rotterdam across eight seasons, seven of which were spent in the Eredivise. The move was influenced by technical director Ernest Faber, who joined the club from PSV Eindhoven last month, and club legend Craig Goodwin, who previously played with Vriends for two seasons.

On 4 July, young centre-back, Panagiotis Kikianis, signed a five-year contract with the club, the longest contract in A-League history. Kikianis made his professional debut midway through last season and scored a last minute equaliser against Perth Glory in his second game.

Adelaide United played their first pre-season friendly on 9 July against The Cove of SA State League 2, winning 9–0 in front of 2,500 spectators, with goals from Dylan Pierias, Ryan Kitto, Austin Ayoubi, Archie Goodwin, Ryan White, and braces from Luka Jovanovic and Yaya Dukuly. A second pre-season friendly took place a week later on 16 July against Adelaide Blue Eagles of State League 1, which United won 6–0. Stefan Mauk scored twice in addition to goals from Goodwin, Pierias, Jovanovic and Ayoubi.

Australia Cup
The draw for the 2024 Australia Cup round of 32 took place on 19 June 2024. Adelaide United were drawn away to NPL NSW side Blacktown City.

A-League Men
Adelaide United will participate in the A-League Men for the 20th time. The first round will take place on the weekend of 18–20 October, with each team playing 26 games across a 29-round season.

Matches
Unite Round fixtures were released on 18 July 2024.

Australia Cup
The round of 32 fixtures were drawn on 19 June 2024. with the date, time and venue confirmed on 25 June 2024.