Steamboy: Awards and nominations
| Year | Category | Subcategory | Info |
|---|---|---|---|
| 2005 | Tokyo Anime Award | Winner Best Art Direction | Film Category (Shinji Kimura) |
| 2005 | Tokyo Anime Award | Winner Notable Entry | Domestic Feature Film Category (Katsuhiro Ôtomo) |
| 2004 | Sitges - Catalonian International Film Festival | Winner Best Animated Feature Film | (Katsuhiro Ôtomo) |