| Doxlion 2174997 · TMA1225411 | an individual | 9 Electronics | Registered | 2024 |
| DEKALIN 2247349 | Dinol GmbH | 1 Chemicals2 Paints3 Cosmetics+1 | Pending | 2023 |
| DOGLINSEN 2348127 · design | Dongguan Linshen Technology Co. Ltd. | 9 Electronics | Pending | 2024 |
| Desilanagn 2256631 · TMA1274768 | an individual | 25 Clothing | Registered | 2024 |
| Dkelincs 2212851 · TMA1244269 | Shenzhen Huacori Technology Co., Ltd. | 20 Furniture | Registered | 2024 |
| Dieselmatic 2162136 · TMA1228659 | Dieselmatic Digital Inc. | 35 Advertising42 Science | Registered | 2024 |
| DecalMile 2155700 · TMA1207769 | an individual | 16 Paper | Registered | 2023 |
| Dikilong 2154066 · TMA1207652 | Quzhou Diku Trade Co. Ltd | 27 Carpets | Registered | 2023 |
| DcLand 2131895 · TMA1197878 | an individual | 41 Education | Registered | 2023 |
| DISLANBO 2124283 · TMA1197745 | Shenzhen Dangewei Clothing Co. Ltd. | 25 Clothing | Registered | 2023 |
| DAZLUMA 2109911 · TMA1157597 | Biohaven Therapeutics Ltd. | 5 Pharmaceuticals | Registered | 2022 |
| DEGALAN 2056136 · TMA1227683 · design | Röhm GmbH | 1 Chemicals2 Paints17 Rubber+1 | Registered | 2024 |
| DUOCLEAN 2036580 · TMA1100799 | SharkNinja Operating LLC | 7 Machines | Registered | 2021 |
| DIZLIN 2007539 · TMA1158718 | an individual | 5 Pharmaceuticals10 Medical44 Medical | Registered | 2023 |
| DECLYN 2001902 · TMA1193178 | AS America, Inc. | 11 Lighting | Registered | 2023 |
| DUOCLEAN 1924855 · TMA1101532 | SharkNinja Operating LLC | 7 Machines | Registered | 2021 |
| DOCULINKS 1831923 · TMA1092051 | Donlin, Recano & Company, Inc. | 42 Science | Registered | 2021 |
| DIGILUME 1716663 · TMA944042 | Crystal Mountain Manufacturing Inc. | 11 Lighting | Registered | 2016 |
| DECLAMERSE 1651837 · TMA1058505 | GLAXO GROUP LIMITED | 5 Pharmaceuticals44 Medical | Registered | 2019 |
| DECOLONIZED 1641289 · TMA910527 · design | Provincial Health Services Authority Aboriginal Health Program | 16 Paper25 Clothing41 Education+1 | Registered | 2015 |
| DIACLIN 1634902 · TMA923716 | an individual | 3 Cosmetics5 Pharmaceuticals10 Medical | Registered | 2015 |
| DAKLINZA 1634529 · TMA960867 | Bristol-Myers Squibb Holdings Ireland Unlimited Company | 5 Pharmaceuticals | Registered | 2017 |
| DAYCLEAN 1597644 · TMA861454 | BISSELL Inc. | 7 Machines | Registered | 2013 |
| DIGILANT 1590355 · TMA898502 | Digilant, Inc. | 35 Advertising | Registered | 2015 |
| DEXILANT 1487782 · TMA855091 · design | Takeda Pharmaceuticals U.S.A. Inc. | 5 Pharmaceuticals | Registered | 2013 |