Saki Aibu is a Japanese actress and voice actress born on June 20, 1985, in Hyogo Prefecture, Japan. She is affiliated with the talent agency Box Corporation. While her career is primarily focused on live-action television and film, she has also contributed her voice to several anime and video game projects.

Aibu's most prominent voice role is that of Remi Altava in the Professor Layton franchise. She voiced the character in the 2009 animated film Professor Layton and the Eternal Diva. She later reprised the role for the Nintendo 3DS video games Professor Layton and the Miracle Mask and Professor Layton and the Azran Legacy. Another significant voice role is Tail in the 2006 animated film Majime ni Fumajime Kaiketsu Zorori: Nazo no Otakara Daisakusen. Her other voice acting credits include the role of Miwako Mangetsu in the 2007 film Doraemon the Movie: Nobita's New Great Adventure into the Underworld and the character Eris in the video game Drakengard 2.

In addition to her voice work, Aibu has built an extensive career as a live-action actress, starring in numerous television dramas. She has held leading roles in adaptations of popular manga, such as Riiko Izawa in Zettai Kareshi (Absolute Boyfriend) and Kaori Makimura in the 2015 live-action series Angel Heart. Her work in live-action has led to broader recognition, including being named an Official Guest of Honor at Anime Expo 2010 in Los Angeles, where she appeared for the world premiere of her film Eternal First Love.