Tetsuya Iwanaga (岩永 哲哉?, Iwanaga Tetsuya; Tokyo, 18 febbraio 1970) è un doppiatore giapponese, affiliato con maxmix.
- El-Hazard (1995) (Makoto Mizuhara)
- Birdy the Mighty (1996) (Tsutomu Senkawa)
- Locke the Superman: Mirror Ring (2000) (Lan Svensen)
- Memories (1995) (Fratello giovane di Nobuo)
- Crayon Shin-chan: Pursuit of the Balls of Darkness (1997) (Gorobe)
- Crayon Shin-chan: Explosion! The Hot Spring's Feel Good Final Battle (1999) (Killer Joe Finger)
- Crayon Shin-chan: The Storm Called The Jungle (2000) (Navigator)
- Evangelion: 1.0 You Are (Not) Alone (2007) (Kensuke Aida)
- Evangelion: 2.0 You Can (Not) Advance (2009) (Kensuke Aida)
- s-CRY-ed Alteration Tao (2011) (Asuka Tachibana)
- Puella Magi Madoka Magica Part 1: Beginnings (2012) (Tomohisa Kaname)
- Puella Magi Madoka Magica Part 2: Eternal (2012) (Tomohisa Kaname)
- Chōriki Sentai Ohranger (1995) (Bara Pino-killer (ep. 14))
- 3 Ji Kara Koi wo Suru series 4: Gozen 0 Ji Ai no Sasayaki (Ryoutarou Fujishiba)
- 3 Ji Kara Koi wo Suru series 6 (crossover with Analyst no Yuutsu series): Ai to Yokubou no Kinyuugai (Ryoutarou Fujishiba)
- Abunai Series 2: Abunai Summer Vacation (Izumi Sudou)
- Abunai Series 4: Abunai Campus Love (Shino Nanba)
- Abunai Series side story 1: Abunai Ura Summer Vacation (Izumi Sudou)
- Analyst no Yuutsu series 2: Koi no Risk wa Hansenai (Ryoutarou Fujishiba)
- Analyst no Yuutsu series 4 (crossover with 3 Ji Kara Koi wo Suru series): Ai to Yokubou no Kinyuugai (Ryoutarou Fujishiba)
- Fushigi Yūgi Genbu Kaiden (Chamuka Tan - Tomite)
- Hello!! Doctor (Yuuya Mizushima)
- Kiken ga Ippai (Tanaka)
- Muteki na Anoko (Tamoo Tateno)
- Otawamure wo Prince (Touru Enami)
- Soryamou Aideshou series 1 & 2 (Muzuki Kurokawa)
- Tokyo Junk 1 & 2 (Masaki Okamoto)
- (EN) Tetsuya Iwanaga (musica per videogiochi e anime), su VGMdb.net.
- Tetsuya Iwanaga, su Last.fm, CBS Interactive.
- (EN) Tetsuya Iwanaga, su Discogs, Zink Media.
- (EN) Tetsuya Iwanaga, su MusicBrainz, MetaBrainz Foundation.
- (EN) Tetsuya Iwanaga, su Anime News Network.
- (EN) Tetsuya Iwanaga, su MyAnimeList.
- (EN) Tetsuya Iwanaga, su IMDb, IMDb.com.