Alexandra Lowe Riley MNZM (born 30 October 1987) is a professional footballer who plays as a defender for Angel City of the American National Women's Soccer League (NWSL).

Riley signed for Western New York Flash for the 2011 season, becoming a free agent after FC Gold Pride failed to find financial backers.

On 26 June 2018, it was announced that Riley would be leaving Rosengård in July to join Chelsea in the English FA Women's Super League.

[9] On 10 February 2020, Ali Riley returned to the US and signed a one-year contract with an option for an additional year for the Orlando Pride.

[14] On 13 July 2020, having been unable to feature for the Pride, Riley returned to Sweden to be with her partner during the pandemic and rejoined Rosengård on loan.

[15] On 27 January 2022, Riley was traded to Angel City FC in exchange for $15,000 in allocation money and a third-round pick in the 2023 NWSL Draft.

[16] During the club's inaugural season, Riley was a starting defender in 19 of the 20 games she played and recorded 1,591 minutes on the pitch.

[19] Angel City finished in fifth place during the regular season and advanced to the playoffs for the first time[20] where they were eliminated by OL Reign in the quarter final match.

[26] Riley also played every minute for the New Zealand squad in the 2008 Summer Olympics where they drew with Japan (2–2) before losing to Norway (1–0) and the United States (4–0).

[28] On 27 June 2011, Riley earned her 50th A-international cap in a 2–1 loss to Japan in New Zealand's opening group stage match at the 2011 FIFA Women's World Cup.

[29] In the final seconds of extra time in the match v. Mexico she assisted on the tying goal that gave the Football Ferns their first point in a World Cup group stage.

In 2013 Riley started for New Zealand in a series of games establishing the Football Ferns as a growing force in international competition.

The Ferns won the Vallais Cup beating #4 Brazil 1–0 and #16 China 4–0 and also had ties playing #10 Australia, #3 Japan and #1 USA.

[35][36] In 2023, Riley released a cookbook featuring plant-based recipes titled Girls Gone Veg with her former Orlando Pride teammate Toni Pressley.