Mia Domini was born in Gilbert, AZ, and began her ballet training at age 8 at the School of Ballet Arizona under Nancy Crowley. She later continued her training at Ballet Etudes before being invited to the winter term at The School of American Ballet in New York City. There she studied for five years under Kay Mazzo, Susan Pilarre, and Suki Schorer. At SAB, she performed featured roles in Workshop performances as well as in the New York Choreographic Institute. She also spent summers training at Pacific Northwest Ballet, Boston Ballet, Carolina Ballet, and Miami City Ballet. Domini became an apprentice with Carolina Ballet in August 2020 and joined the Corps de Ballet in August 2021. Domini was then promoted to Soloist in August 2023.