| R | Joachim BlichfeldInactive | — |
| R | Joakim KemellInactive | — |
| R | Joel Armia |  LAKLos Angeles Kings |
| R | Joel L'EsperanceInactive | — |
| R | Joel VerminInactive | — |
| R | Joel WardInactive | — |
| R | Joey AndersonInactive | — |
| R | John-Jason Peterka |  BOSBoston Bruins |
| R | Jonas Rondbjerg |  VGKVegas Golden Knights |
| R | Jonatan Berggren |  STLSt. Louis Blues |
| R | Jonathan DavidssonInactive | — |
| R | Jonathan LekkerimakiInactive | — |
| R | Jonathan Marchessault |  NSHNashville Predators |
| R | Joonas DonskoiInactive | — |
| R | Jordan Eberle |  SEASeattle Kraken |
| R | Jordan Kyrou |  WSHWashington Capitals |
| R | Jordin TootooInactive | — |
| R | Josh Anderson |  MTLMontréal Canadiens |
| R | Josh ArchibaldInactive | — |
| R | Josh BaileyInactive | — |
| R | Josh CurrieInactive | — |
| R | Josh Doan |  BUFBuffalo Sabres |
| R | Josh JoorisInactive | — |
| R | Joshua Ho-SangInactive | — |
| R | Joshua RoyInactive | — |
| R | JT BrownInactive | — |
| R | Judd Caulfield |  ANAAnaheim Ducks |
| R | Julien GauthierInactive | — |
| R | Justin AugerInactive | — |
| R | Justin BaileyInactive | — |
| R | Justin Brazeau |  PITPittsburgh Penguins |
| R | Justin Danforth | BUFBuffalo Sabres |
| R | Justin WilliamsInactive | — |
| R | Kaapo Kakko | SEASeattle Kraken |
| R | Kailer Yamamoto |  UTAUtah Mammoth |
| R | Kasper BjorkqvistInactive | — |
| R | Kasperi Kapanen |  EDMEdmonton Oilers |
| R | Keegan Kolesar |  DETDetroit Red Wings |
| R | Kevin HayesInactive | — |
| R | Kevin LabancInactive | — |
| R | Kirill Marchenko |  CBJColumbus Blue Jackets |
| R | Kole LindInactive | — |
| R | Kole SherwoodInactive | — |
| R | Kris VersteegInactive | — |
| R | Kurtis GabrielInactive | — |
| R | Kyle OkposoInactive | — |
| R | Lee StempniakInactive | — |
| R | Lenni Hameenaho |  NJDNew Jersey Devils |
| R | Leo KomarovInactive | — |
| R | Linden VeyInactive | — |