Alison Ahn is an American actress. She has appeared in such television series as "Billions", "Orange Is the New Black", "Raising Dion" and "The Diplomat".

Ahn grew up in Pasadena, California. She is of Korean descent. She studied dance and theatre at Yale University, from which she graduated in 2003. In 2006 she received an MFA in acting from the California Institute of the Arts.

In New York theatre, Ahn made her Broadway debut in the short-lived revival of "The Heidi Chronicles" with Elisabeth Moss in February–May 2015. She played the lead role off-Broadway in Rajiv Joseph's play "Letters of Suresh" at the Tony Kiser Theater in September–October 2021. A Times review noted that her "awkward charisma" elevated the play's epistolary concept.

On television, Ahn played recurring characters in such series as "Billions" (2016–2018) and "Orange Is the New Black" (2018). She played biotech company CEO Suzanne Wu in the Netflix superhero show "Raising Dion" (2019–2022), a role that was promoted to series regular in the second season. She played another lead role on Netflix — Central Intelligence Agency (CIA) station chief Eidra Park in the drama series "The Diplomat" (2023–present). She is set to appear in the Disney+ superhero show "Agatha: Darkhold Diaries".