Bryn Watkins grew up in Orange, California, in the United States. She began her ballet training at the West Coast Conservatory of Ballet at age five. At age eleven she began training at Ballet Pacifica with noted teachers Amanda McKerrow and John Gardner. In 2008, Bryn enrolled at the Maple Conservatory of Dance where she trained for five years under the direction of Charles Maple and others. She has attended summer intensives at Ballet West, Houston Ballet, and American Ballet Theatre, all on scholarship. Bryn was a Finalist in the Music Center Spotlight Awards, a Gold Level Young Arts Winner, and a Presidential Scholar in the Arts nominee. She joined American Ballet Theatre as an apprentice in September 2012 and was promoted to the corps de ballet in May 2013.
She joined the Royal New Zealand Ballet at the end of 2013.