| ROSETTES 1090845 · TMA619013 · design | Boulangerie Vachon Inc. / Vachon Bakery Inc. | 30 Coffee | Registered | 2004 |
| RISETTES 0564788 · TMA333846 | Paragon Trade Brands, LLC (a Delaware Limited Liability Company) | 5 Pharmaceuticals | Registered | 1987 |
| ROCKETTES 1783306 · TMA1057161 | Radio City Trademarks, LLC | 25 Clothing | Registered | 2019 |
| ROCKETTES 1692585 · TMA926236 | Radio City Trademarks, LLC | 35 Advertising41 Education | Registered | 2016 |
| ROCKETTES 0808506 · TMA543774 | RADIO CITY TRADEMARKS, LLC (A DELAWARE LIMITED LIABILITY COMPANY) | 25 Clothing | Registered | 2001 |
| ROSETS 0594790 · TMA366076 | Owner not shown | 5 Pharmaceuticals | Registered | 1990 |
| ROCKETTES 0478648 · TMA294974 | RADIO CITY TRADEMARKS, LLC (A DELAWARE LIMITED LIABILITY COMPANY) | 35 Advertising41 Education | Registered | 1984 |
| ROCKETCASES 1644437 · TMA908430 | Rocketcases Inc. | 9 Electronics | Registered | 2015 |
| RUSTICA 2245570 · TMA1265721 | MASCO CANADA LIMITED | 6 Metal20 Furniture21 Housewares | Registered | 2024 |
| RYSTIGGO 2241889 · TMA1260157 · design | an individual | 5 Pharmaceuticals | Registered | 2024 |
| RYSTIGGO 2239130 · TMA1259874 · design | an individual | 5 Pharmaceuticals | Registered | 2024 |
| RIGHTCARE 2211724 · TMA1244188 | OUTSOURCE PHARMACY SOLUTIONS, INC. DBA EXPRESSMED CORPORATION | 5 Pharmaceuticals10 Medical | Registered | 2024 |
| Raksduz 2210291 · TMA1241777 | an individual | 24 Textiles | Registered | 2024 |
| REACTX 2194759 · TMA1235164 | an individual | 25 Clothing | Registered | 2024 |
| RUSTICA 2190440 · TMA1194073 | MASCO CANADA LIMITED | 11 Lighting | Registered | 2023 |
| RIGHTSENSE 2171480 · TMA1190033 | an individual | 9 Electronics | Registered | 2023 |
| RYSTIGGO 2160780 · TMA1205416 | an individual | 5 Pharmaceuticals | Registered | 2023 |
| RIGHTSIGHT 2152938 · TMA1189928 | an individual | 9 Electronics | Registered | 2023 |
| RestAssure 2152849 · TMA1266805 | SomnoMed Limited | 9 Electronics10 Medical | Registered | 2024 |
| RockDock 2129467 · TMA1234357 | Beijing Roborock Technology Co. Ltd. | 7 Machines | Registered | 2024 |
| RIGHTCLICK 2116356 · TMA1166078 | an individual | 10 Medical | Registered | 2023 |
| RECTICAP 2106406 · TMA1218076 | Owner not shown | 1 Chemicals7 Machines11 Lighting+3 | Registered | 2024 |
| REACTEX 2087256 · TMA1146016 | Soft-Tex International Inc. | 20 Furniture24 Textiles | Registered | 2022 |
| RIGIDSEAL 2077513 · TMA1253547 · design | an individual | 11 Lighting | Registered | 2024 |
| RCTCLEAN 2074135 · TMA1282258 | Radical Combustion Technologies, LLC | 7 Machines | Registered | 2025 |