| ROSSI 2021552 · TMA1143551 · design | an individual | 7 Machines12 Vehicles | Registered | 2022 |
| ROUSSO 1629190 · TMA884089 · design | an individual | 1 Chemicals3 Cosmetics6 Metal+4 | Registered | 2014 |
| ROUSSO 1471022 · TMA793539 · design | an individual | 14 Jewellery16 Paper26 Sewing | Registered | 2011 |
| ROSSI 2342949 | Owner not listed | 25 Clothing | Pending | 2024 |
| Rouqi 2124501 · TMA1222107 | Shenzhen L-Star Commerce CO.. LTD. | 24 Textiles25 Clothing | Registered | 2024 |
| RoSS 2075671 · TMA1213979 | Single Use Support GmbH | 6 Metal11 Lighting20 Furniture | Registered | 2023 |
| ROSS 1974050 · TMA1095280 · design | AVIAGEN GROUP HOLDING, INC. | 31 Fresh | Registered | 2021 |
| ROSS 1974031 · TMA1095277 · design | AVIAGEN GROUP HOLDING, INC. | 31 Fresh | Registered | 2021 |
| ROSS 1949574 · TMA1209152 | ROSS INDUSTRIES INC. | 7 Machines | Registered | 2023 |
| RIOS 1911581 · TMA1091570 | an individual | 23 Yarns | Registered | 2021 |
| ROSS 1680520 · TMA943701 | Veolia Water Technologies, Inc. | 11 Lighting | Registered | 2016 |
| ROSI 1675859 · TMA915458 | AdvanSix Resins & Chemicals LLC | 9 Electronics | Registered | 2015 |
| ROSKI 1663109 · TMA900837 · design | ROSKI COMPOSITES INC. | 35 Advertising40 Treatment | Registered | 2015 |
| ROSS 1644544 · TMA1052942 | Ross Stores, Inc. | 25 Clothing35 Advertising | Registered | 2019 |
| ROSKI 1642192 · TMA900836 | ROSKI COMPOSITES INC. | 35 Advertising40 Treatment | Registered | 2015 |
| ROSSY 1638190 · TMA1010905 | an individual | 35 Advertising | Registered | 2018 |
| ROSS 1484430 · TMA800560 | SMS PRODUCT DESIGN INC. | 6 Metal8 Hand9 Electronics+5 | Registered | 2011 |
| ROSI 1465461 · TMA786889 | British Columbia College of Nurses and Midwives | 9 Electronics38 Telecommunications42 Science | Registered | 2011 |
| ROUSH 1402693 · TMA774700 | ROUSH ENTERPRISES, INC. | 1 Chemicals12 Vehicles20 Furniture+2 | Registered | 2010 |
| ROUSH 1402692 · TMA774339 | ROUSH ENTERPRISES, INC. | 4 Oils | Registered | 2010 |
| ROSS 1291419 · TMA681228 | an individual | 2 Paints8 Hand16 Paper | Registered | 2007 |
| ROSS 1291418 · TMA684592 · design | an individual | 2 Paints8 Hand16 Paper | Registered | 2007 |
| ROSS 1204505 · TMA639034 · design | Ross Service Investment Corporation | 35 Advertising36 Finance39 Transport+4 | Registered | 2005 |
| Rouqi 2328999 | Horizontaline Technologies Inc. | – | Pending | 2024 |
| RISI 2182955 | PRESS GANEY ASSOCIATES, LLC | 35 Advertising | Pending | 2022 |