Hanging up the gloves: Matildas goalkeeper to retire after Olympics

The goalkeeper has made 103 'A' international appearances with the Matildas in a national career that kicked off when she was 15 years old.

"With great honour, appreciation and peace I'm announcing my international football retirement to be concluded at the end of the Paris Olympics in August," she said in a video posted to social media on May 9.

"I'm so thankful for the opportunity to not only wear the crest and perform for my country but also to the wonderful memories and fantastic people that I've met along the way," she said.

"I've always wanted to leave the game better than when I first came in and I hope I've had a hand in that."

The proud Noongar woman has represented Australia at five FIFA tournaments, six AFC Women's Asian Cups and two Olympic Games Women's Football Tournaments.

"I started in this team as a teenager from Canberra and across almost two decades I never imagined that I would be afforded the opportunity to learn, grow, experience life's challenges and joys, fight against injustices and be shaped into the person I am today," she said.

Matildas head coach Tony Gustavsson said Ms Williams truly represented what the Matildas were about, showing authenticity, warmth and "incredible on-field talent".

"Lydia has done all of that and then some more," he said.

"To be able to play the game at the highest level for close to two decades takes significant commitment, passion and focus to always get one day better.

"Her story is one that shows what is possible with hard work and drive. Just as importantly, Lydia makes others around her better as she willingly and generously shares her experience and knowledge for the benefit of the team."

The Matildas thanked their teammate after her retirement announcement with fellow goalkeeper Teagan Micah saying "I looked up to you for so many years".

"You pushed me, coached me, protected me and became over time not just a competitor but a close friend. You raised the game for us goalkeepers in Australia and the game will miss you," Ms Micah said.

Australia's national women's team have a tough road ahead after drawing Group B at the Paris Olympics playing against Germany, the United States and Zambia.