| ROHKEA 2250023 | Owner not listed | 5 Pharmaceuticals9 Electronics10 Medical+5 | Pending | 2022 |
| ROOK 2217789 · TMA1245538 | 2653552 ONTARIO INC. | 1 Chemicals2 Paints3 Cosmetics | Registered | 2024 |
| ROOK 2125760 · TMA1189694 | Osprey Packs, Inc. | 18 Leather | Registered | 2023 |
| ROOK 2046660 · TMA1145885 | VD Holding Inc. | 12 Vehicles | Registered | 2022 |
| ROXKA 2011779 · TMA1110456 | NEW WIN PTY. LTD. | 3 Cosmetics | Registered | 2021 |
| ROOK 2002890 · TMA1240795 · design | Zhenping County Huading Stainless Steel Products Co., Ltd. | 8 Hand | Registered | 2024 |
| ROKA 1923294 · TMA1113735 | ROBATA RESTAURANTS LIMITED | 33 Wine43 Restaurants | Registered | 2021 |
| ROOK 1792375 · TMA1031327 | Circa Scientific, Inc. | 10 Medical | Registered | 2019 |
| ROOK 1705498 · TMA957199 | Delta Faucet Company | 11 Lighting | Registered | 2016 |
| ROKA 1681234 · TMA952652 · design | Roka Sports, Inc. | 25 Clothing | Registered | 2016 |
| ROOK 1610675 · TMA937000 · design | Rook Clothing Company, LLC | 25 Clothing | Registered | 2016 |
| ROOKIE 1596532 · TMA1026424 | The Haddad Apparel Group, Limited | 14 Jewellery18 Leather25 Clothing+1 | Registered | 2019 |
| ROOK 0087660 · TMDA21698 | HASBRO, INC. | 28 Toys | Registered | 1916 |
| ROOK 2235299 | Delta Faucet Company | 21 Housewares | Pending | 2023 |
| ROKA 2025951 | Roka Sports, Inc. | 9 Electronics | Pending | 2020 |
| RYOKUEI 1200610 · TMA653654 | NIPPON MENARD COSMETIC CO. LTD. | 3 Cosmetics | Registered | 2005 |
| ROSSEAU 2334501 | ROSSEAU GROUP INTERNATIONAL INC. | 9 Electronics11 Lighting40 Treatment+1 | Pending | 2024 |
| ROGUE 2266999 · TMA1249081 | Owner not listed | 8 Hand | Registered | 2024 |
| Roooku 2243091 · TMA1268530 | Owner not listed | 25 Clothing | Registered | 2024 |
| ROSA 2224809 · TMA1230728 | Vêtements médicaux Rosa inc. | 10 Medical | Registered | 2024 |
| Rockaway 2219903 · TMA1253768 | Yameizhong Trading (Shenzhen) Co. Ltd. | 9 Electronics | Registered | 2024 |
| ROGUE 2215772 · TMA1233996 · design | Mitsubishi Chemical America, Inc. | 28 Toys | Registered | 2024 |
| ROXIA 2196174 · TMA1222463 | an individual | 40 Treatment | Registered | 2024 |
| ROSIE 2186553 · TMA1265406 | MARKS AND SPENCER PLC | 25 Clothing | Registered | 2024 |
| ROKI 2111508 · TMA1192698 · design | ROKI Co. Ltd. | 10 Medical | Registered | 2023 |