Makiko Nabei is a Japanese voice actor affiliated with the agency Mausu Promotion. She was born on February 13, 1981, in Kagawa Prefecture.

Nabei began her career in anime around 2007, taking on various supporting roles. One of her earliest significant parts was as the voice of Ren Seto in the 2007 television anime series Seto no Hanayome, also known as My Bride is a Mermaid. She also performed an insert song for this series. Her involvement with the series extended to its subsequent OVA episodes.

In 2008, she was cast as Kayoko Uchida, the girlfriend of the titular hero, in the comedy anime Tentai Senshi Sunred, also known as Astro Fighter Sunred. She reprised this role for the anime's second season in 2009. Another role from this period was as Hiroshi in an episode of Gintama.

Her voice acting credits include a wide array of characters in numerous anime television series. She played Shizue Kousaka in Nyan Koi! and Aiko Yakushiji in AYAKASHI in 2009. In 2011, she voiced Chihaya Senou in Kamisama Dolls. The following year, she was heard as the Shiroku Store Landlady in Persona 4: The Animation. She also provided voices for characters in series such as Joker Game, Sakura Trick, and Wakako-zake. In addition to television, her filmography includes parts in the OVA series Hellsing and the feature film Naruto Shippuden the Movie.

Beyond her anime work, Nabei has contributed to the drama CD medium, appearing in titles such as the dialect-focused drama series 方言恋愛 and other productions.