Nobuyuki Hiyama (檜山修之, Hiyama Nobuyuki, born August 25, 1967) is a Japanese voice actor, narrator, and radio personality currently affiliated with Arts Vision.

His vocal register is described as a metallic lyric tenor suitable to voice a mature variation of coming of age young men. Combined with an impactful execution on battle cries, he earned his reputation in voicing heroic protagonists commonly found in works of the mecha, fighting, and fantasy genres. Hiyama is recognized for his portrayal of Hiei from YuYu Hakusho, by starring twice within the Brave Series franchise as Maito Senpuuji of The Brave Express Might Gaine, and Gai Shishioh of the King of Braves GaoGaiGar. He also played Link in The Legend of Zelda: Ocarina of Time.