A 2013 graduate of Framingham High School in Framingham, Mass., Wilder was a four-year letter winner in field hockey, ice hockey and lacrosse. A team Captain in all three sports Wilder helped lead her lacrosse team to a State Championship in 2010. Wilder was also a League All-Star in field hockey and ice hockey. She was coached by PSU lacrosse/soccer alumna and PSU Hall of Fame member Stacey Freda.
Kaitlyn Marie Wilder is the daughter of Kelly and Kevin Wilder. She has two sisters (Kourtnie and Kristin). Older sister Kourtnie plays lacrosse at Assumption College and younger sister Kristin is committed to play lacrosse at UConn in 2015.