Olivia Lynes (born November 11, 2011) is a British singer and actress, who gained fame as a finalist in Series 16 of Britain's Got Talent (2023). Known for her powerful vocals and receiving Amanda Holden's Golden Buzzer, she performed "Defying Gravity" and "Into the Unknown" on the show. She has since appeared on The Helene Fischer Show and acted in the 2025 film Hamnet.