They became the only South Australian member admitted into the A-League Men in 2005, after they spent their inaugural season in the National Soccer League.
The club's first team has competed in numerous nationally and internationally organised competitions, and all players who have played in 100 or more such matches are listed below.
Eugene Galekovic holds the record for greatest number of appearances for Adelaide United.
Players highlighted in bold are still actively playing at Adelaide United.
The current captain is Ryan Kitto, who took over from Craig Goodwin in 2023 who left the club.