Ashley Maynard-Brewer is an Australian professional footballer who plays for Charlton Athletic.
Maynard-Brewer began his career in the academy at Australian club ECU Joondalup, before signing for Charlton Athletic in 2015, where he is contracted until the end of the 2022–23 season. On 13 November 2018, Maynard-Brewer made his debut for Charlton in a 1–0 EFL Trophy loss against Swansea City U21s.
Maynard-Brewer has been loaned out six times by Charlton. He signed for Chelmsford City on loan in November 2018, and the following March joined Hampton & Richmond Borough on loan until the end of the 2018–19 season.
On 5 August 2019, Maynard-Brewer joined Dulwich Hamlet on a 28-day emergency loan, and the following January he joined Dover Athletic.
Maynard-Brewer joined Ross County on a season-long loan in August 2021. Ahead of the 2022–23 season, Maynard-Brewer joined recently-relegated League Two club Gillingham on another season-long loan, Charlton holding the option to recall him. In July 2022 he suffered a dislocated shoulder in a pre-season friendly against his former side Dover Athletic, keeping him out of action for several months. He returned to action for Charlton's U21s side in a 2–0 loss to Bristol City's U21s on 1 November 2022 Maynard-Brewer was recalled from his loan on 17 November 2022 without making a competitive first-team appearance for Gillingham.