Rylee Ann Foster (born 13 August 1998) is a Canadian soccer player who plays as a goalkeeper for USL Super League Dallas Trinity FC. She has represented Canada at the under-17 and under-20 levels. In 2021, she was called up to the senior national team.

Kitchener-born, and raised in Cambridge, Ontario, Foster attended Stewart Avenue Public School, where she first excelled in sports from a young age, then Glenview Park Secondary School where she ran track and earned Junior Track Athlete of the Year honors.

Foster was a Liverpool supporter as a youth. Her grandparents were born in South Liverpool in Wavertree.

Foster attended West Virginia University from 2016–2019 where she played for the West Virginia Mountaineers with fellow Canadian internationals Kadeisha Buchanan and Ashley Lawrence. She made 84 appearances for the Mountaineers and had 39 clean sheets (the second highest record in the school's history)

Foster signed with Liverpool in January 2020 right before the COVID-19 pandemic. She made her debut in a 3–1 win over Manchester United in October 2020 during the Continental Cup. She made her FA Women's Super League debut in a 1–1 draw with Blackburn Rovers Ladies in March 2021. The same month, she signed a long-term contract with Liverpool in March 2021.

She was named Player of the Month for April after keeping two clean sheets, including saving Katie Wilkinson’s and Courtney Sweetman-Kirk’s penalties in a 1–0 away win at Sheffield United.

In September 2023, almost two years after the car crash that halted her career, Foster joined New Zealand A-League Women club Wellington Phoenix to compete for the first-choice goalkeeper spot with Brianna Edwards. In July 2024, she left the club together with Edwards.

In September 2024, Foster would sign a short term contract with FA WSL club Everton.