Samuel George Claflin (born 27 June, 1986) is an English actor. After graduating from the London Academy of Music and Dramatic Art in 2009, he began his acting career on television and had his first film role as Philip Swift in Pirates of the Caribbean: On Stranger Tides (2011).

Claflin gained wider recognition for playing Finnick Odair in The Hunger Games film series (2013–2015) and for his starring role in the romantic comedy Me Before You (2016). He has since portrayed Oswald Mosley in the television series Peaky Blinders (2019–2022) and Mycroft Holmes in the mystery film Enola Holmes (2020). In 2023, Claflin played Billy Dunne in Daisy Jones & The Six. Based on the book of the same name, it follows the story of a rock band in the 1970s, and premiered on Amazon Prime Video on March 3, 2023.