MacInnis married his wife Jackie shortly after winning the Stanley Cup in 1989, and the couple have four children, Carson, Ryan, Lauren and Riley.
MacInnis settled in St. Louis following his retirement, and in 2006 was named the Blues' Vice-President of Hockey Operations.
He coaches his children's minor hockey teams, and in 2008–09 coached the St. Louis Junior AAA Blues to a 73–3–2 record and the championship title at the 50th Quebec International Pee-Wee Hockey Tournament.
His son Ryan was a member of the Kitchener Rangers, and was drafted by the Arizona Coyotes in the 2014 NHL Entry Draft.
His daughter Lauren has committed to play ice hockey at Northeastern University.

Though his career took him away from Nova Scotia, MacInnis remains involved with his hometown.
 In 2001, he committed C$100,000 towards a major renovation of the Port Hood Arena.
The arena was renamed the Al MacInnis Sports Centre in his honour, and he hosts an annual golf tournament to help raise funds for the arena commission.
On the day he was inducted into the Nova Scotia Sport Hall of Fame, he donated $100,000 to the Inverness County Memorial Hospital in the memory of his parents.

In 2018 he finished third to hockey superstar Sidney Crosby and curler Colleen Jones in a listing of the greatest 15 athletes in Nova Scotia's history.
MacInnis married his wife Jackie shortly after winning the Stanley Cup in 1989, and the couple have four children, Carson, Ryan, Lauren and Riley. MacInnis settled in St. Louis following his retirement, and in 2006 was named the Blues' Vice-President of Hockey Operations. He coaches his children's minor hockey teams, and in 2008–09 coached the St. Louis Junior AAA Blues to a 73–3–2 record and the championship title at the 50th Quebec International Pee-Wee Hockey Tournament. His son Ryan was a member of the Kitchener Rangers, and was drafted by the Arizona Coyotes in the 2014 NHL Entry Draft. His daughter Lauren has committed to play ice hockey at Northeastern University.
Though his career took him away from Nova Scotia, MacInnis remains involved with his hometown.  In 2001, he committed C$100,000 towards a major renovation of the Port Hood Arena. The arena was renamed the Al MacInnis Sports Centre in his honour, and he hosts an annual golf tournament to help raise funds for the arena commission. On the day he was inducted into the Nova Scotia Sport Hall of Fame, he donated $100,000 to the Inverness County Memorial Hospital in the memory of his parents.
In 2018 he finished third to hockey superstar Sidney Crosby and curler Colleen Jones in a listing of the greatest 15 athletes in Nova Scotia's history.
Al MacInnis