 Linus Arnesson (D) | 1994-09-21 | 2026 | Örebro HK | SHL |  |
 Linus Johan Eidsa Arnestad (F) | 2010-10-07 | 2026 | Lillehammer U18 | Norway U18 | |
 Turner Arnett (LW) | 2002-08-24 | 2022 | Vaudreuil-Dorion Mustangs | LHMJAA | |
| Jacob Arnfinson (F) | 2010-05-16 | 2025 | Calgary Flames U15 AAA | AEHL U15 | |
 Jan Arngold (F) | 2007-02-06 | 2026 | SG Rostock/Timmendorf U20 | Germany U20 4 | |
 Aevar Arngrimsson (RW) | 2003-08-07 | 2026 | Skautafélag Reykjavikur | Iceland | |
 Gustavs Arnis (G) | 2008-03-14 | 2026 | Frisk Asker | Norway | |
| Nils Arnlöf (F) | 2010-04-26 | 2026 | MoDo Hockey U16 | U16 Region | |
| Anthony Arnold (D) | 2012-02-10 | 2026 | MLAC U15 AAA | AEHL U15 | |
| Camden Arnold (F) | 2009-04-29 | 2026 | Blenheim Blades | PJCHL | |
| Carter Arnold (G) | 2007-08-30 | 2026 | Espanola Paper Kings | NOJHL | |
 Cody Arnold (G) | 2006-02-03 | 2026 | Prince George Spruce Kings | BCHL | |
| Ethan Arnold (D) | 2010-04-13 | 2026 | ES Lions U16 | PHL U16 | |
| Gavin Arnold (G) | 2007-12-03 | 2026 | Christian Brothers College High | USHS-MO | |
| Jack Arnold (F) | 2011-11-01 | 2026 | Dallas Stars Elite 14U AAA | 14U AAA | |
| Jaden Arnold (LW) | 2006-10-20 | 2024 | Komoka Kings |  GOJHL | |
| Justin Arnold (F) | 2000-05-24 | 2026 | County Royals | NPHL | |
| Lucas Arnold (D) | 2008-07-13 | 2026 | Valley Jr. Warriors | EHL | |
| Mason Arnold (F) | 2009-01-13 | 2025 | Bethlehem Central High | USHS-NY | |
| Owen Arnold (D) | 2003-11-12 | 2026 | SUNY-Fredonia | NCAA III | |
| Wyatt Arnold (F) | 2009-00-00 | 2024 | Reedsburg/Wisconsin Dells | USHS-WI | |
| Lukas Arnolt (D) | 2008-09-26 | 2026 | King's-Edgehill School U18 | U18 AAA | |
| Anthony Arnone (F) | 2012-00-00 | 2026 | Washington Little Caps 13U AAA | T1EHL 13U | |
| Vincent Arnone (F) | 2009-06-18 | 2026 | Oakland Jr. Grizzlies 16U AAA | 16U AAA | |
| Ian Arnott (G) | 2006-01-07 | 2026 | New Hampshire Avalanche | EHL | |
| Quinn Arnott (F/D) | 2002-10-28 | 2025 | County Royals | OSHL | |
| Eskil Arnström (G) | 2010-10-12 | 2026 | Lions HC | Division 3 | |
| Liam Arnström (G) | 2007-08-26 | 2026 | Viking HC U20 | U20 Div.1 | |
| Stormer Arntsen (G) | 2008-00-00 | 2024 | Tromsø IK U18 | Norway U18 2 | |
| Atte Aro (LW) | 2009-02-08 | 2026 | Linden Hockey U18 2 | U18 Div.1 | |
 Luukas Aro (D) | 2008-01-02 | 2026 | Hermes U18 | U18 Suomi-sarja | |
 Heikki Arola (D) | 2012-04-11 | 2025 | Team Kirk U13 | EIH Showcase U13 | |
| David Aron (F) | 2008-04-19 | 2026 | Palm Beach Typhoon | USPHL Elite | |
 Toren Aronoff (D) | 1995-06-27 | 2026 | Jerusalem Lions | Israel | |
| Artjom Aronov (F) | 2007-03-16 | 2026 | EHC Basel U21 |  Swiss U21-Top | |
| Micah Aronson (F) | 2011-00-00 | 2026 | Toronto Jr. Canadiens U15 AAA | GTHL U15 | |
| Alfred Aronsson (G) | 2008-12-07 | 2026 | Vänersborgs HC U20 | U20 Div.1 | |
| Oskar Aronsson (G) | 2006-11-01 | 2026 | IFK Salem | Division 4 | |
| Tommy Aronsson (RW) | 1993-11-18 | 2018 | Lysekils HK | Division 3 | |
| Santeri Arousva (D) | 1993-03-09 | 2026 | Kiekko 49 | III-divisioona | |
 Hugo Arps (F) | 2009-08-18 | 2026 | Sydney Bears | AIHL | |
 Samuel Arraiza-Recalde (F) | 2004-04-02 | 2026 | CHH. Necso Txuri Urdin | Spain | |
| Quinn Arras (D) | 2008-05-21 | 2026 | ESV 03 Chemnitz U20 | DNL U20 2 | |
 Kévin Arrault (F) | 1983-04-11 | 2014 | Cergy-Pontoise II | France4 | |
| Svante Arrhagen (D) | 2010-05-31 | 2026 | Malmö Redhawks U18 | U18 Nationell | |
 Matteo Arriaga (D) | 2009-08-29 | 2026 | CIHA Voyageurs U18 Prep | CSSHLE U18 | |
| Nicholas Arrington (F) | 2006-01-23 | 2026 | Odessa Jackalopes | NAHL | |
| Joshua Arrobas (F) | 2004-07-27 | 2025 | Elmira Impact | USPHL Premier | |
| Blake Arrowsmith (RW) | 2007-04-17 | 2026 | Soo Greyhounds | OHL | |
| Jonathan Arruda (F/D) | 2006-05-11 | 2026 | Tulsa Jr. Oilers | NA3HL | |
| Keira Arscott (D) | 2008-03-07 | 2026 | Cornwall Lady Royals U18 AA | OWHL U18 AA (W) | |
| Benoit Arsenault (D) | 2006-04-27 | 2026 | Cégep Beauce-Appalaches Condors | QJHL | |
| Cooper Arsenault (D) | 2009-02-11 | 2026 | North Shore Whitecaps U18 AAA | U18 AAA | |
| Éli Arsenault (D) | 2006-11-14 | 2026 | Richelieu Grand Ducs | LHMJAA | |
| Joshua Arsenault (G) | 2006-06-26 | 2025 | Ventura Vikings | USPHL Premier | |
| Jude Arsenault (D) | 2010-03-26 | 2026 | Mount Academy Saints U17 | CSSHLE U17 | |
| Ken Arsenault (F) | 1980-11-14 | 2012 | St-Pascal Imperial | LHBBF | |
| Noah Arsenault (RW) | 2010-11-25 | 2026 | Victoria Hockey Academy U17 | JPHL U17 | |
| Vincent Arsenault (G) | 2011-05-28 | 2026 | Calgary IHA U15 AAA | CSSHL U15 AAA | |
| Carter Arseneau (F) | 2004-08-24 | 2026 | Tavistock Jr. Braves | PJCHL | |
| Jacob Arseneault (F) | 2007-04-08 | 2026 | Universel Collège Gatineau | USPHL Premier | |
| Jack Arseniuk (D) | 2011-01-27 | 2026 | RINK HA Winnipeg U15 Prep | CSSHL U15 | |
| Aleksandar Arsic (F/D) | 1994-11-28 | 2012 | ESC Moskitos Essen U18 | Germany U18 3 | |
 Melis Arslan (F) | 2008-04-17 | 2026 | Buz Adamlar GSK | Turkey (W) | |
| John Arsoy (F) | 2012-00-00 | 2026 | Mercer Chiefs 13U AAA | THF 13U | |
| Benjamin Art (G) | 2010-07-29 | 2026 | Albany Academy | USHS-Prep | |
 Fedor Artamonov (F) | 2009-01-04 | 2026 | Armada Odintsovo-2 U18 | Russia Region U18 | |
| Dylan Artano (F) | 1998-10-31 | 2026 | Wasquehal | France4 | |
| Nolan Artaud (D) | 2007-05-25 | 2025 | Mulhouse U18 | France U18 2 | |
| Egor Artemov (D) | 2003-10-21 | 2022 | Hofors HC | Division 2 | |
| Andrew Artenosi (D) | 2006-12-25 | 2026 | Worcester Jr. Railers | NCDC | |
| Mason Arthur (D) | 2010-10-26 | 2026 | Tampa Crunch 15U AA | SFHL 16U AA | |
| Anthony Arthurs (F) | 2003-11-09 | 2026 | Hiram College | NCAA III | |
| Tyler Arthurs (F) | 2003-11-09 | 2026 | Hiram College | NCAA III | |
| Alicia Arthursson (F) | 2009-10-10 | 2026 | IF Troja-Ljungby | HockeyAllsvenskan (W) | |
| Elias Arthursson (LW) | 2005-05-08 | 2026 | Alvesta SK | Division 2 | |
| Aleksandrs Artjuhovs (F) | 2012-09-05 | 2026 | Liepaja U16 | Latvia U16 | |
 Andres Artjusin (D) | 1997-11-03 | 2017 | HC Tallinn | Estonia | |
 Jake Arts (D) | 2011-00-00 | 2026 | Heerenveen Flyers U17 | Netherlands U17 | |
| Xander Nikolas Artymiak (D) | 2006-10-13 | 2026 | Palm Beach Typhoon | USPHL Premier | |
 Viktor Artyushenko (F) | 1996-05-17 | 2022 | Gümüs Patenler SK | Turkey | |
 Gordei Artyushin (D) | 2008-12-01 | 2026 | Turan Tigers | Kazakhstan Jastar | |
| Michael Arustamyan (F) | | 2023 | Solon High | USHS-OH | |
| Artashes Arutunyan (LW) | 2005-05-05 | 2026 | Ventura Vikings | USPHL Premier | |
| Harout Arutyunyan (F) | 2007-04-07 | 2026 | Anchorage Wolverines | NAHL | |
| Christine Arvai (D) | 2009-12-00 | 2026 | New Hampshire Mountain Cats 19U | NGHL 19U (W) | |
| Niko Arvanitidis (G) | 2011-05-20 | 2026 | NV River Rats 14U AAA | 14U AAA | |
| Adam Arvedson (D) | 2001-08-30 | 2026 | IF Troja-Ljungby | HockeyAllsvenskan | |
| Robby Arver (F) | 2002-01-18 | 2026 | Eastern Washington Univ. | ACHA II | |
| Theodor Arvfors (D) | 2010-07-18 | 2026 | Tullinge TP U18 | U18 Div.1 | |
| Evelina Arvidsson (F) | 2007-03-22 | 2026 | HV71 | SDHL (W) | |
| Lukas Arvidsson (D) | 2009-07-30 | 2026 | Värnamo GIK U20 | U20 Div.1 | |
| William Arvsäter (D) | 2008-08-27 | 2026 | Västerås IK U18 | U18 Region | |
| Victor Arwengrim (D) | 2007-05-13 | 2026 | Kils AIK U20 | U20 Div.1 | |
| Manne Arwenhed (D) | 2008-07-31 | 2026 | AIK U18 | U18 Nationell | |
| Lauren Marie Arzadon (G) | 2008-12-08 | 2026 | St. James HC 19U AA | AGHF 19U (W) | |
| Jürgen Arzberger (G) | 1966-07-30 | 1999 | ERSC Amberg | Germany3 | |
| Louis Arze (F) | 2010-01-00 | 2026 | New Jersey Colonials 15U AAA | AYHL 15U | |
| Ferdinand Arzt (F) | 2011-07-15 | 2026 | EV Regensburg U15 | Germany U15 | |
| Edward Asante (F) | 2005-08-00 | 2025 | Penn State Univ. - Altoona | AAU Fed | |