Leyla Trebbien is a German voice actor and musician based in Cologne. She has been active as a freelance speaker for dubbing, advertising, and video games since 2014. Her vocal range is versatile, allowing her to perform a variety of character types, from children to stern soldiers.

In the field of anime dubbing, Trebbien is known for providing the German voice of Fumino Furuhashi in the romantic comedy series We Never Learn: BOKUBEN. The German synchronization for this series was produced at the G&G Studios. Her other anime voice work includes the role of Miyuri in The Magnificent Kotobuki and Suguru Okamura in Higurashi.

Beyond anime, Trebbien has an extensive body of work in German audio dramas. She is the voice of the character Saphira in the series Die Abenteuer der Letzten Helden, appearing in multiple episodes, including volumes 14 and 19, which were produced by Holysoft GmbH in 2023. Her dubbing work also encompasses major video game franchises, where she has lent her voice to the German versions of titles such as Resident Evil, Call of Duty, The Last of Us, and Tomb Raider. Her career in voice acting is complemented by her work as a musician; she is a singer and guitarist, leading her own band, Leyla Trebbien & Band, which performs a mix of soul, pop, and blues.