Kouji Fujiyoshi is a Japanese voice actor affiliated with the agency I'm Enterprise. He was born on June 21 in Aichi Prefecture, Japan. His path to the profession began in high school, sparked by his interest in anime. He pursued this passion by training at the Japan Narration Actors Institute, Ezaki Production, and the Visual Techno Academy before embarking on his professional career.

Fujiyoshi's career started in the 2000s, with early roles in series such as Naruto: Shippuden and Bleach, often voicing minor characters and townspeople. Over the years, he has built a substantial portfolio of supporting roles across a wide range of anime. He is known for voicing Prince Zanac Valleon Igana Ryle Vaiself in the Overlord series, appearing in its second, third, and fourth seasons. His other anime roles include the bartender in Aldnoah.Zero, a reconnaissance squad leader in Knights of Sidonia, a producer in Is This a Zombie?, a doctor in Taisho Otome Fairy Tale, and Shousen Kaku in Science Fell in Love, So I Tried to Prove It.

Beyond anime, Fujiyoshi is active in video games and dubbing. His video game credits include Final Fantasy XIII, AKIBA'S TRIP2, and Nobunaga's Ambition: Sphere of Influence. In the field of dubbing, he has provided Japanese voices for foreign films and television dramas, including the American series ER and Mad Men. He has also participated in radio dramas and lent his voice to the live-action film Gintama. His hobbies include karaoke and skiing, and he holds a regular driver's license.