Ms Wirth was a leading candidate to replace Alan Joyce at the Australian airline before Vanessa Hudson's appointment was announced in May 2023.

In October 2023, Myer nominated Ms Wirth to join their board and a week later she resigned from Qantas.

"The next chapter in Myer's story requires us to continue tackling some significant challenges and meet the changing needs of our customers," Ms Wirth said in the statement.

"I am focused on delivering improved outcomes for our valued customers, team members and all Myer shareholders," she said.

"My immediate priorities will be ensuring we are delivering a great in-store experience with a world-class range and best-in-class customer service, while investing in e-commerce and harnessing loyalty and partnerships among our customers and suppliers."

Ms Wirth steps into the chairperson role in mid-March and will become Myer's CEO from June 4.