Vince Dunn

Dunn was born on October 29, 1996, in Mississauga, Ontario, Canada, to police officer John and nurse Tracy Dunn. His step brother Nolan Dunn is also a hockey player. Growing up, he cheered for the hometown Toronto Maple Leafs, specifically Carl Gunnarsson and Alexander Steen. In honour of Dunn's grandfather who was important in his development as a player, the family started a Canadian Tire Jumpstart memorial fund in his name.

As a result of his early success, Dunn was invited to the 2011 Ontario Minor Hockey Association AAA Showcase in Barrie prior to the 2012 Ontario Hockey League (OHL) Priority Selection Draft. He was eventually drafted 109th overall by the Niagara IceDogs in the 2012 OHL Priority Selection Draft but chose to play amateur Junior B hockey with the Thorold Blackhawks of the Greater Ontario Junior Hockey League before joining the IceDogs. Upon reflection on his decision, Dunn stated, "I needed to learn a few more things to move up to the next level....I thought Thorold would be the best place for me." During his season with the Blackhawks, Dunn collected 28 points in 48 games.

Dunn continued to improve in his second season with Niagara, totaling 56 points in 68 games to clinch the team's Top Defenceman of the Year Award. He was invited to the 2015 BMO Top Prospects Game where he remained pointless in the 6–0 loss to Team Orr. He also earned a final ranking of 32nd overall amongst North American Skaters by the NHL Central Scouting Bureau prior to the 2015 NHL Entry Draft. When asked about his rising status, Dunn stated "Obviously, I want to be selected in the first round....I believe I’m a first-round pick but if it doesn’t end up that way, I’m going to work just as hard no matter where I am picked and whoever picks me." Dunn and the IceDogs qualified for the 2015 OHL playoffs, where he scored four goals in Game 1 against the Ottawa 67s to help the team win the series 4–2. He began the second round against the Oshawa Generals leading all defencemen before being suspended two games for slew footing Mitchell Vande Sompel. Although he returned to the lineup for Game 4, a knee injury would keep him out for the remainder of the series. Dunn was eventually selected by the St. Louis Blues 56th overall in the second round of the draft and signed a three-year, entry-level contract with the team on September 25, 2015.

On June 24, 2015, Dunn was one of seven Niagara IceDogs players and prospects invited to participate in Hockey Canada Summer Showcase. However, Dunn left the camp early due to a pre-existing knee injury. Dunn attended the St. Louis Blues 2015 Development Camp before returning for his final season of major junior hockey with the IceDogs. Once again, he led the IceDogs to the OHL playoffs and was selected as the IceDogs Top Defenceman of the Year for the second consecutive season. During the IceDogs Eastern Conference Finals series win over the Kingston Frontenacs, Dunn suffered a knee injury and sat out for the start of the Eastern Conference championships. He suffered the injury during Game 3 of the series and was listed as day-to-day with no surgery required. Dunn eventually returned to the lineup and led the IceDogs to the Eastern Conference championship over the London Knights.

At the conclusion of his major junior career, Dunn opted to begin his professional career and was assigned by the Blues to their American Hockey League (AHL) affiliate, the Chicago Wolves, for the 2016–17 season. He recorded his first career professional goal in a 4–2 loss against the Grand Rapids Griffins on October 15, 2016. At the age of 20, Dunn was the youngest player on the roster and he compiled 45 points in 72 games to lead the Wolves defence in scoring.

Approaching his second season as a professional, Dunn made the St. Louis Blues' opening night roster for the 2017–18 season. He made his NHL debut with the Blues against the defending Stanley Cup champions, the Pittsburgh Penguins, while playing a third pairing role in a 5–4 overtime win on October 4, 2017. Eight days later, Dunn registered his first career NHL goal at 18:51 in the third period during a 5–2 loss to the Florida Panthers. He consistently played on the team's third pairing with Robert Bortuzzo while averaging 16:14 of ice time and playing on the second power play unit. On March 18, 2018, Dunn became the first Blues rookie to record four points in one game since Rik Wilson during a 5–4 overtime win against the Chicago Blackhawks. At the conclusion of his sophomore season, Dunn was named to Canada's senior team to compete at the 2018 IIHF World Championship, but was replaced by Josh Bailey due to an injury.

Dunn continued his success in the National Hockey League by once again making the Blues lineup to begin the 2018–19 season. During a game against the Edmonton Oilers on December 18, Dunn cross-checked Oilers forward Jujhar Khaira, earning him a minor penalty and $1,942.20 fine. In March 2019, Dunn recorded a new career-high in points with 27 and joined Alex Pietrangelo and Colton Parayko as the first three Blues defensemen to reach 10 goals in the same season. He stayed with the team the entire season and helped them qualify for the 2019 Stanley Cup playoffs. During Game 3 of the Western Conference finals, Dunn took a puck to the face which he broke his jaw and required multiple surgeries to fix. He returned to the Blues' lineup for Game 4 of the 2019 Stanley Cup Finals and recorded a point in the 4–2 win over the Boston Bruins. On June 12, 2019, Dunn won the 2019 Stanley Cup Final with the Blues, St. Louis' first Stanley Cup in their 52-year franchise history. Upon winning the Cup, Dunn said "For me at such a young age, it's very special...You kind of take things for granted when you're younger, but now you really take it in." During his Day with the Cup, Dunn returned to his hometown of Lindsay, Ontario and Kawartha Lakes.