Jacob Eisman is an American voice actor born on July 22, 1994, in Virginia Beach, Virginia, and is based in Texas. He is affiliated with major anime dubbing companies, including Crunchyroll (formerly Funimation Entertainment) and Sentai Filmworks. Eisman has been active in the voice-over industry for over a decade, with his professional experience including work at Studio Center from 2010 to 2019 before moving to freelance work with Crunchyroll and Funimation.

Eisman is known for his work providing English dubbing voices for numerous anime series. One of his noted roles is Akinori Konoha in the Haikyu!! franchise. He voices this character in the Haikyu!! Land vs. Air original video animation and continues the role in Haikyu!! To The Top, taking over from a previous voice actor for the part. In addition to his work on Haikyu!!, his other significant anime voice roles include Kunugi in No Guns Life, Giovanni in Skeleton Knight in Another World, Kyle in Trapped in a Dating Sim: The World of Otome Games is Tough for Mobs, and the manager in Ishida and Asakura. He has also contributed voices to a wide range of other series, providing additional voices or minor character roles in productions such as Aoashi, BLUELOCK, Attack on Titan, One Piece, and Tsukimichi -Moonlit Fantasy-.

Beyond anime, his voice acting work extends to video games. He is credited with voicing Matthias Czernin in Identity V, Naoe Hisamasa and Takeshi in Genshin Impact, and providing voices for Legend of Keepers and Toontown Rewritten. He has also been involved in walla, or group voice work, for films such as Seobok and The Great War of Archimedes.