Sarah Marie Hagen (born November 18, 1989) is a retired professional soccer player who is currently an assistant coach for the Green Bay Glory in the USL W League.

[3] Hagen played with the FC Milwaukee Nationals of the Women's Premier Soccer League while still a student in the university.

[8] On March 20, 2014, FC Kansas City announced that Hagen would join their team in June 2014 after the end of her season with Bayern Munich.

[14] Hagen scored a goal in all three United States U23 games in the 2011 Four Nations Tournament, including a game-winner vs. Sweden and the equalizer vs.

[15] In December 2013, Hagen was invited to attend a two-week camp in California with the United States women's national soccer team.

[16] In February 2014, Hagen was named to the roster for the senior national team to travel to the 2014 Algarve Cup in Portugal.

In 2022, Hagen returned to Wisconsin to join the coaching staff of the Green Bay Glory ahead of the inaugural USL W League season.