Erin Rachael Doherty (born 16 July 1992) is a British actress who played the young Princess Anne in the third and fourth seasons of the Netflix drama The Crown (2019–2020). She has also featured in Chloe (2022), Reawakening (2024), A Thousand Blows (2025), and Adolescence (2025).

Erin is of Irish heritage and is from Crawley in West Sussex. Her paternal grandfather was from Carndonagh, a town in Inishowen in the north of County Donegal in Ulster. Doherty's parents divorced when she was four. She began acting in Sunday drama classes with her older sister Grace shortly afterwards.

Doherty studied at Hazelwick School in Crawley. A talented footballer, Doherty played in midfield for and captained the Crawley Wasps and was scouted by Chelsea Women; she reached the age where she "had to commit" to either football or acting and chose the latter.

Doherty took a one-year course at the Guildford School of Acting (2011–12) before training at the Bristol Old Vic Theatre School (2012–15).

Whilst training, Doherty won the Stephen Sondheim Society Student Performer of the Year Award (SSSSPOTY) in 2015 for her rendition of "Broadway Baby" from the Sondheim musical Follies.