Kirk previously became the first player born and trained in England to be chosen in the NHL Draft when the Coyotes selected him in the seventh round (189th overall) in the 2018 NHL Entry Draft.
"We are very pleased to sign Liam to an entry-level contract," said Armstrong. "Liam played extremely well at the World Championships in Latvia and has earned this contract. He's a goal scorer with a great work ethic and he is very focused on realizing his dream of one day playing in the NHL. We look forward to watching him continue to develop."
The 6-foot-1, 187-pound Kirk recently played for Great Britain at the 2021 IIHF World Championship in Riga, Latvia. He recorded 7-2-9 in seven games to lead his team in goals and points. Kirk's seven goals tied for the tournament lead and he was named to the World Championship All-Star team.
The 21-year-old forward registered 10-10-20 and four PIM in 14 games with the Sheffield Steelers of the Elite Ice Hockey League (EIHL) in 2020-21. He also played in 12 contests with Hanhals IF (Hockey Ettan), totaling 5-5-10- and two PIM.
The Maltby, England native registered 21-29-50 with a plus-17 rating and 25 penalty minutes (PIM) in 47 games with the Peterborough Petes of the Ontario Hockey League (OHL) in 2019-20. He totaled 47-50-97 with a plus-23 rating and 51 PIM in 110 OHL games over two seasons with Peterborough.
Kirk played for Great Britain on multiple occasions including at the 2016 IIHF World Under-18 Championship Division 2, Group A, the 2017 World Junior Championship Division 1 Group B tournament and helped Great Britain win a gold medal at the 2018 World U18s Division 2, Group A, and a bronze medal at the World Junior Championship Division 2, Group A with a tournament-best 14 points (seven goals, seven assists).
Kirk also won a gold medal as the second-youngest player on Great Britain team at the 2018 IIHF World Championship Division 1, Group A tournament.