Stephanie Renee Cox (née Lopez; born April 3, 1986) is an American soccer coach and former professional player who played as a defender.

[5] In 2007, after she returned from the World Cup, Lopez led the Jollons to 11 straight wins and 10 shutouts and helped her team advance to the NCAA quarterfinals.

[10] On June 19, 2013, Seattle Reign FC announced that they had signed Cox for the remainder of inaugural season of the National Women's Soccer League.

[15] Following the regular season, Cox along with goalkeeper Hope Solo and fellow defender Lauren Barnes were named to the Second XI team.

[18] More than three years after her retirement from professional soccer, Cox decided to resume playing and signed as a National Team replacement player for former club Reign FC on May 31, 2019.

Her play helped the Women's National Team win a gold medal at the 2008 Beijing Olympic Games.

[22] Cox was the head coach of the girls' soccer team at Gig Harbor High School from 2015 to 2019,[23] and she led them to an undefeated season and a state championship in 2018.

She returned as assistant coach after the club's relocation to Tacoma, Washington, in 2019, before deciding to resume her playing career midway through the season.

[19] In June 2022, Cox was named the interim head coach of the Puget Sound Loggers women's soccer team.

[26] Cox has assisted her parents, Rob and Cindy Lopez, in leading a group of teens to Egypt to paint an orphanage, traveled to the Bahamas to clear land for construction of a learning center, traveled to Mexico to serve meals to American missionaries, and was part of a team that created a Hurricane Katrina fundraiser in 2005.

[citation needed] Stephanie lives in Gig Harbor, Washington with her husband, former University of Portland baseball player Brian Cox, and their daughter Kaylee.