Lily Sullivan (born 8 September 1994) is an Australian actress, known for her role as Coral in the 2012 film Mental and in the lead role of Miranda in the 2018 TV series Picnic At Hanging Rock.

Early life and education
Sullivan's father is an importer of medical equipment, and her mother a visual artist, who emigrated to Australia from the UK together before Lily's birth. She grew up in Queensland and attended John Paul College in early years then went to Calvary Christian College in year 2 in Logan City, graduating in 2011.

After seeing a production of A Streetcar Named Desire on stage in Brisbane as a teenager, Sullivan became enamoured with the idea of acting, and planned to audition for one of the major drama schools. However, a callout for a film role came in her final year of high school, and she auditioned and won the role.