MacKenzie Porter was raised on a cattle and bison ranch near Medicine Hat, Alberta. She began studying piano, violin and voice at age four. Growing up, she toured in a family band with her brother, 2004 Canadian Idol winner Kalan Porter.

Porter has appeared in numerous films and television productions, including the TV series Dinosapien in 2007. She earned a Best Actress in Alberta award for her role in the TV movie The Other Woman. She was also named as one of the Top 11 Hottest Vancouver Actors to Watch for 2011 by BC Living magazine.