Maki Tomonaga is a Japanese voice actress affiliated with the agency AZ Creative. She is a native of Oita Prefecture in Japan. Tomonaga is also known for her work under several pseudonyms, most notably Himari and Aikawa Tamaki, which she uses primarily for roles in adult games.

Tomonaga is most widely recognized by audiences for her role as Chocola in the Nekopara franchise. She has voiced the cheerful and energetic catgirl character across multiple anime adaptations, including the 2017 Nekopara OVA, the 2018 ONA Nekopara: Koneko no Hi no Yakusoku, and the 2020 Nekopara television anime series. Her performance as the protagonist Chocola stands as a significant and defining role in her career.

Beyond Nekopara, her anime credits include a role as Hibiki Migita in the television series Rail Romanesque 2 and a recurring part in the TV adaptation of Summer Pockets. Her voice work also extends to a wide variety of other media, including video games for consoles like the PlayStation 4 and PlayStation Vita, online games, mobile applications, radio dramas, and drama CDs. Some of her noted video game roles include Arisu Arishima in Monobeno -pure smile- and Hibiki Migita in the Maitetsu franchise. Her body of work also encompasses commercial narrations and music performances. In public appearances at events, she is known to wear an eye mask to cover her eyes.