Hiromi Niwa Filmography
| 2025 | YAIBA: Samurai Legend (TV Series) · as Key Animation |
| 2024 | Rising Impact (TV Series) · as Key Animation |
| 2024 | Delicious in Dungeon (TV Series) · as Animation Director |
| 2023 | Tengoku Daimakyo (TV Series) · as Key Animation |
| 2023 | Gridman Universe · as Key Animation |
| 2022 | Ranking of Kings: The Treasure Chest of Courage (TV Series) · as Key Animation |
| 2021 | Super Crooks (TV Series) · as Key Animation |
| 2021 | Star Wars: Visions (TV Series) · as Animation |
| 2021 | Fate Grand Order: The Grand Temple of Time · as Key Animation |
| 2021 | Scarlet Nexus (TV Series) · as Key Animation |
| 2021 | SSSS.DYNAZENON (TV Series) · as Key Animation |
| 2020 | Demon Slayer: Kimetsu no Yaiba - The Movie: Mugen Train · as Key Animation |
| 2020 | Jujutsu Kaisen (TV Series) · as Opening/ending Animation |
| 2020 | Fate/stay night [Heaven's Feel] III. spring song · as Key Animation |
| 2020 | Keep Your Hands Off Eizouken! (TV Series) · as Key Animation |
| 2019 | Carole & Tuesday (TV Series) · as Key Animation |
| 2019 | Demon Slayer: Kimetsu no Yaiba (TV Series) · as Key Animation |
| 2019 | Fate/stay night [Heaven's Feel] II. lost butterfly · as Key Animation |
| 2018 | My Hero Academia: Two Heroes · as Key Animation |
| 2017 | Fate/Grand Order: Moonlight/Lostroom · as Key Animation |
| 2017 | Our Love Has Always Been 10 Centimeters Apart. (TV Series) · as Animation Director |
| 2017 | Fate/stay night [Heaven's Feel] I. presage flower · as Key Animation |
| 2017 | Fireworks · as Key Animation |
| 2017 | Sakura Quest (TV Series) · as Key Animation |
| 2016 | Fate/Grand Order: First Order · as Key Animation |
| 2016 | The Ancient Magus' Bride: Those Awaiting a Star (TV Series) · as Key Animation |
| 2016 | Mob Psycho 100 (TV Series) · as Key Animation |
| 2016 | Bungo Stray Dogs (TV Series) · as Key Animation |
| 2015 | God Eater (TV Series) · as Key Animation |
| 2015 | Snow White with the Red Hair (TV Series) · as Key Animation |
| 2013 | Attack on Titan (TV Series) · as Key Animation |
| 2007 | Naruto Shippuden (TV Series) · as Animation |