Gideon Adlon (born March 30, 1997) is an American actress. She is best known for her starring roles in the comedy film Blockers (2018), the drama film The Mustang (2019), and the horror film The Craft: Legacy (2020). Adlon also starred in the Netflix drama series The Society (2019). She is also known for playing Violet in the video game The Walking Dead: The Final Season (2018).

Early life and education
Adlon was born in Los Angeles and holds both American and German citizenship through her father. She is the oldest daughter of actress Pamela Adlon and director Felix O. Adlon. Her younger sisters are actress Odessa A'zion and Valentine "Rocky" Adlon. Her paternal grandfather is German filmmaker Percy Adlon and her maternal grandfather was American writer-producer Don Segall. Her maternal grandfather was born to a Jewish family, and her English-born maternal grandmother, originally an Anglican, converted to Judaism. Through her father, she descends from the German hotelier Lorenz Adlon.

Adlon studied Photography at Columbia College Chicago for a year before deciding to pursue acting full-time.