The 2023 Australian Swimming Championships are scheduled to be held from 17 to 20 April 2023 at the Gold Coast Aquatic Centre in Gold Coast, Queensland.

This event will double as the national selection trials for the 2023 World Para Swimming Championships to be held in Manchester in July. It will also form part of the selection process for the 2023 World Aquatics Championships and 2023 US TYR Pro Championships, however final team selections will not be announced until the 2023 Australian Swimming Trials in Melbourne, Victoria in June.

There were no major withdrawals from the event with the exception of 2020 Olympian Chelsea Hodges who has required surgery to repair torn cartilage in her right hip. Minna Atherton also missed the event due to injury.

M = Morning session (starting at 10:00), E = Evening session (starting at 18:00)

The medallist for the open events are below.

During the 2023 Australian Swimming Championships the following records were set.

The following 26 Paralympic athletes were selected to be part of the team to represent Australia by meeting the qualifying times in either the heats or finals.

In April 2023, it was announced that the Nine Network's streaming service 9Now had secured an exclusive broadcast streaming deal with Swimming Australia, after the network had previously committed to broadcasting the next five Olympic Games as well as the 2023 World Aquatics Championships in Fukuoka, Japan.