Mary Caroline Wickenheiser (born June 3, 1997) is a professional soccer player who plays as a midfielder for the North Carolina Courage of the National Women's Soccer League (NWSL). Born in the United States, she plays for the Canada national team. She played college soccer for the Texas Tech Red Raiders.

Wickenheiser played youth soccer with Lou Fusz Athletic SC. She attended St. Joseph's Academy and was an All-Metro selection in her senior year.

In 2015, Wickenheiser began attending Texas Tech University, where she played for the women's soccer team. In 2016, she earned Academic All-Big 12 Second Team honours. In 2017 and 2018, she earned First Team Academic All-Big 12 honours. She served as team captain in both 2017 and 2018.

In February 2019, she joined Morön BK in the Swedish second tier Elitettan. After the season, she re-signed with the club for the 2020 season. However, in 2020, her return to Sweden was delayed due to the COVID-19 pandemic, with her being denied entry to Sweden four times.

In December 2020, she signed with first tier Damallsvenskan club KIF Örebro. In October 2021, she extended her contract for another season.

In November 2022, Wickenheiser signed with Kristianstad on a two-year contract beginning in 2023. She served as a team captain and scored her first league goal for the club on September 14, 2024 in a 4-1 victory over AIK.

In December 2024, Wickenheiser signed with Damallsvenskan club BK Häcken on a two-year contract.

In January 2026, Wickenheiser transferred to the North Carolina Courage for an undisclosed fee, signing a two-year contract.