| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| Odeen Tufto | 2021 | 0 | Vegas Golden Knights | 0.0 | |
| Oiva Keskinen | 2023 | 203 | Edmonton Oilers | 0.0 | |
| Oliver Bonk | 2023 | 31 | Montreal Canadiens | 0.0 | |
| Oliver Johansson | 2021 | 81 | Tampa Bay Lightning | 7.0D | |
| Oliver Moore | 2023 | 8 | Washington Capitals | 7.5C | |
| Oliver Suni | 2020 | 133 | Vegas Golden Knights | 0.0 | |
| Oliver Tarnstrom | 2020 | 129 | Colorado Avalanche | 0.0 | |
| Olivier Nadeau | N/A | 2021 | 79 | Ottawa Senators | |
| Ollie Josephson | 2024 | 102 | New Jersey Devils | 6.5C | |
| Olof Glifford | 2023 | 138 | Colorado Avalanche | 0.0 | |
| Ondrej Kos | 2024 | 100 | Nashville Predators | 6.5D | |
| Ondrej Psenicka | 2019 | 190 | Carolina Hurricanes | 7.5C | |
| Oscar Plandowski | 2021 | 142 | Florida Panthers | 6.0C | |
| Oskar Jellvik | 2021 | 186 | New Jersey Devils | 0.0 | |
| Oskar Magnusson | 2020 | 185 | St.Louis Blues | 0.0 | |
| Oskar Vuollet | 2024 | 152 | Dallas Stars | 6.5C | |
| Owen Allard | 2024 | 125 | Buffalo Sabres | 7.0C | |
| Owen Beckner | 2023 | 216 | Washington Capitals | 6.5C | |
| Owen Griffin | 2025 | 146 | Winnipeg Jets | 6.0D | |
| Owen Martin | 2025 | 82 | Winnipeg Jets | 5.5D | |
| Owen Pederson | 0 | 0 | New Jersey Devils | 6.0C | |
| Owen Protz | 2024 | 114 | Carolina Hurricanes | 5.0D | |
| Owen Say | 0 | 0 | Winnipeg Jets | 5.5C |
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