| 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 Kapanen | 2021 | 65 | Seattle Kraken | 7.0D | |
| Oliver Moore | 2023 | 8 | Washington Capitals | 7.5C | |
| Oliver Okuliar | 0 | 0 | Buffalo Sabres | 7.5C | |
| Oliver Suni | 2020 | 133 | Vegas Golden Knights | 0.0 | |
| Oliver Tarnstrom | 2020 | 129 | Colorado Avalanche | 0.0 | |
| Olivier Nadeau | 2021 | 79 | Ottawa Senators | 0.0 | |
| Ollie Josephson | N/A | 2024 | 102 | New Jersey Devils | |
| Olof Glifford | 2023 | 138 | Colorado Avalanche | 0.0 | |
| Ondrej Becher | 2024 | 72 | Florida Panthers | 7.0C | |
| Ondrej Kos | 2024 | 100 | Nashville Predators | 6.5D | |
| Ondrej Psenicka | 2019 | 190 | Carolina Hurricanes | 7.5C | |
| Oscar Eklind | 0 | 0 | Utah Hockey Club | 6.5C | |
| Oscar Fisker Molgaard | 2023 | 63 | Montreal Canadiens | 0.0 | |
| Oscar Plandowski | 2021 | 142 | Florida Panthers | 5.5C | |
| Oskar Jellvik | 2021 | 186 | New Jersey Devils | 0.0 | |
| Oskar Magnusson | 2020 | 185 | St.Louis Blues | 0.0 | |
| Oskar Vuollet | N/A | 2024 | 152 | Dallas Stars | |
| Otto Salin | 2022 | 138 | Ottawa Senators | 6.0D | |
| Otto Stenberg | 2023 | 24 | Washington Capitals | 6.0D | |
| Owen Allard | 2024 | 125 | Buffalo Sabres | 6.5C | |
| Owen Beck | 2022 | 37 | Tampa Bay Lightning | 7.0D | |
| Owen Beckner | 2023 | 216 | Washington Capitals | 6.5C | |
| Owen Lindmark | 2019 | 173 | New York Rangers | 0.0 | |
| Owen Pederson | 0 | 0 | New Jersey Devils | 6.0C | |
| Owen Pickering | 2022 | 20 | Buffalo Sabres | 9.0C | |
| Owen Protz | 2024 | 114 | Carolina Hurricanes | 5.0D | |
| Owen Say | 0 | 0 | Winnipeg Jets | 5.5C |
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