2018–19 Adelaide United FC season

The 2018–19 Adelaide United FC season was the club's 15th season since its establishment in 2003. The club participated in the A-League for the 14th time and the FFA Cup for the 5th time.

Appearances and goals

 * colspan="26"|Players no longer at the club
 * colspan="26"|Players no longer at the club

† = Scholarship or NPL/NYL-listed player