Yeun Sang-Yeop (Korean: 연상엽; born December 21, 1983), known professionally as Steven Yeun (/jʌn/ YUHN), is an American actor. Yeun initially became famous for playing Glenn Rhee in The Walking Dead (2010–2016). He earned critical acclaim for the films Burning (2018) and  Minari (2020). The latter earned him a nomination for the Academy Award for Best Actor, making him the first Asian American actor to be nominated. Time magazine named him one of the 100 most influential people in the world in 2021. In 2023, he starred in the dark comedy series Beef (2023), for which he won two Primetime Emmy Awards and a Golden Globe Award.

Yeun has also appeared in the films Okja (2017), Sorry to Bother You (2018), The Humans (2021) and Nope (2022). He has also voiced main characters in animated television series such as Voltron: Legendary Defender (2016–2018), Tales of Arcadia (2016–2021), Stretch Armstrong and the Flex Fighters (2017–2018), Final Space (2018–2021), Tuca & Bertie (2019–2022), and Invincible (2021–present).