Fukujūrō Katayama is a Japanese voice actor born on November 4 in Tokyo, Japan. He is recognized for several leading roles in prominent anime films and television series.

Katayama is best known for voicing the character Daisuke Motomiya, also known as Davis Motomiya in English adaptations, in the Digimon Adventure franchise. He took on this role for the 2020 film Digimon Adventure: Last Evolution Kizuna and reprised it for the 2023 sequel film Digimon Adventure 02: The Beginning. His performance as the energetic leader of the DigiDestined is a central part of his career.

Beyond the Digimon series, Katayama has voiced other significant anime characters. He played the role of Peco, whose real name is Yutaka Hoshino, in the critically acclaimed 2014 sports anime Ping Pong the Animation. He also provides the voice for Sumimaru, a black cat who assists the mysterious shopkeeper, in the children's anime series Fushigi Dagashiya Zenitendō which began airing in 2020. His other film work includes the role of Saion in the 2018 movie Aragne: Sign of Vermilion and the character Bluestreak in the series Q Transformers: Kaettekita Convoy no Nazo.