| RD Sennou Chousashitsu | Action,Drama,Sci-fi | 26 |
| REC | Comedy,Drama,Romance,Slice of Life | 10 |
| RUN=DIM | Action,Mecha,Sci-fi | 13 |
| Rahxephon Movie | Action,Drama,Mecha,Military,Psychological,Romance,Sci-fi | 1 |
| Rahxephon | Action,Drama,Mecha,Mystery,Psychological,Romance,Sci-fi | 26 |
| Rainbow: Nisha Rokubou No Shichinin | Drama | 16 |
| Ranma 1/2 OVA | Adventure,Comedy,Ecchi,Fantasy,Gender Bender,Harem,Martial Arts,Romance,School Life,Shounen,Supernatural | 6 |
| Ranma 1/2 | Action,Comedy,Martial Arts,Romance,Slice of Life | 161 |
| Ray The Animation | Drama,Romance,Sci-fi | 13 |
| Rayca | Sci-fi | 1 |
| Re: Cutey Honey | Adventure,Comedy,Ecchi,Shoujo Ai | 3 |
| Read Or Die OVA | Action,Adventure,Comedy,Drama,Historical,Magic,Mystery,Sci-fi | 3 |
| Read Or Die TV | Action,Adventure,Comedy,Drama,Sci-fi | 26 |
| Red Garden | Drama,Mystery | 22 |
| Reideen | Action,Mecha,Sci-fi | 26 |
| Renkin San-Kyuu Magical? Pokaan | Comedy,Ecchi,Fantasy,Magic | 12 |
| Rental Magica | Fantasy,Magic,Mystery,Shounen | 24 |
| Requiem From The Darkness | Fantasy,Historical,Horror,Mystery,Psychological,Supernatural | 13 |
| Revolutionary Girl Utena | Action,Drama,Fantasy,Psychological,Shoujo | 39 |
| Ride Back | Mecha,School Life,Sci-fi | 12 |
| Riki-Ou: Toukatsu Jigoku | Action,Martial Arts,Mature | 1 |
| Ring Ni Kakero 1: Kage Dou Hen | Action,Shounen,Sports | 6 |
| Ring Ni Kakero 1: Nichibei Kessen Hen | Action,Shounen,Sports | 12 |
| Ring Ni Kakero 1 | Action,Shounen,Sports | 12 |
| Rio : Rainbow Gate ! | Comedy,Ecchi | 13 |
| Ristorante Paradiso | Drama,Josei,Slice of Life | 11 |
| Rizelmine | Comedy,Romance,Sci-fi | 24 |
| Robin Hood No Daibouken | Action,Adventure,Fantasy | 52 |
| Rocket Girls | Adventure,Comedy,Sci-fi | 12 |
| Rockman.EXE Axess | Action,Adventure,Comedy,Sci-fi | 51 |
| Rockman.EXE Beast+ | Action,Adventure,Mecha,Sci-fi,Shounen | 26 |
| Rockman.EXE Beast | Action,Adventure,Mecha,Sci-fi,Shounen | 25 |
| Rockman.EXE Stream | Action,Adventure,Mecha,Sci-fi,Shounen | 51 |
| Rockman.EXE | Action,Adventure,Comedy,Mecha,Sci-fi,Shounen | 56 |
| Romance Of The Three Kingdom | Adventure,Historical,Martial Arts | 47 |
| Romeo X Juliet | Drama,Fantasy,Romance | 24 |
| Ronin Warriors | Action,Adventure,Martial Arts,Sci-fi,Shounen | 39 |
| Rosario To Vampire Capu2 | Comedy,Ecchi,Fantasy,Harem,Romance,School Life,Shounen,Supernatural | 13 |
| Rosario To Vampire | Comedy,Ecchi,Fantasy,Romance,School Life,Shounen | 13 |
| Rose Of Versailles | Adventure,Drama,Fantasy,Historical,Romance,Shoujo | 40 |
| Rozen Maiden - Ouverture | Drama,Fantasy,Magic,Supernatural | 2 |
| Rozen Maiden 2 | Comedy,Drama,Fantasy,Magic,Supernatural | 12 |
| Rozen Maiden | Adventure,Comedy,Drama,Supernatural | 12 |
| Rumic Theater | Comedy,Drama,Romance,Shounen,Slice of Life,Supernatural | 13 |
| Rurouni Kenshin - Seisouhen | Action,Drama,Historical | 2 |
| Rurouni Kenshin | Action,Adventure,Comedy,Drama,Romance | 95 |
| Ragnarok The Animation | Action,Adventure,Fantasy,Magic | 26 |
| Rave Master | Action,Adventure,Comedy,Fantasy,Romance | 51 |
