On November 18, 2014, the Toronto Blue Jays announced that they had signed Martin to a five-year, $82 million contract.
Early in spring training, manager John Gibbons told reporters that Martin would be R.A. Dickey's catcher during practice and in preseason games, to give him the opportunity to practice catching Dickey's knuckleball.
Martin received a standing ovation from the fans at Olympic Stadium on April 3, as the Blue Jays played their final two spring training games in Montreal for the second consecutive year.
On April 19, 2015, Martin caught Jeff Francis in his debut for the Blue Jays, and in doing so formed the first all-Canadian battery in franchise history.
On June 2, Martin stole home off the back end of a double steal, and became the first Blue Jay to steal home since Brett Lawrie did so in 2012.
Martin established a new career-high in home runs on September 26, hitting his 22nd of the season to aid the Blue Jays to a 10–8 win over the Tampa Bay Rays.
He ended the 2015 regular season with a .240 batting average, 23 home runs, and 77 RBI in 129 games.
He led the major leagues in passed balls, with 19.
 Martin was announced as a finalist for the catcher Gold Glove award, along with Salvador Pérez and Jason Castro.

Martin appeared in 137 games for the Blue Jays in 2016, and hit .231 with 20 home runs and 74 RBI.
He struggled in the postseason, recording only three hits in 33 at-bats.

On April 29, 2017, Martin became the 15th catcher to record 10,000 career putouts at the position.

On June 20, 2018, Martin became the 11th catcher to make 11,000 career putouts at the position.
Martin endured his worst offensive season of his career, hitting .194 with 10 home runs and 25 RBIs.
In the final game of the 2018 season, Martin managed the Blue Jays, the team wound up losing in his managerial debut.
On November 18, 2014, the Toronto Blue Jays announced that they had signed Martin to a five-year, $82 million contract. Early in spring training, manager John Gibbons told reporters that Martin would be R.A. Dickey's catcher during practice and in preseason games, to give him the opportunity to practice catching Dickey's knuckleball. Martin received a standing ovation from the fans at Olympic Stadium on April 3, as the Blue Jays played their final two spring training games in Montreal for the second consecutive year. On April 19, 2015, Martin caught Jeff Francis in his debut for the Blue Jays, and in doing so formed the first all-Canadian battery in franchise history. On June 2, Martin stole home off the back end of a double steal, and became the first Blue Jay to steal home since Brett Lawrie did so in 2012. Martin established a new career-high in home runs on September 26, hitting his 22nd of the season to aid the Blue Jays to a 10–8 win over the Tampa Bay Rays. He ended the 2015 regular season with a .240 batting average, 23 home runs, and 77 RBI in 129 games. He led the major leagues in passed balls, with 19.  Martin was announced as a finalist for the catcher Gold Glove award, along with Salvador Pérez and Jason Castro.
Martin appeared in 137 games for the Blue Jays in 2016, and hit .231 with 20 home runs and 74 RBI. He struggled in the postseason, recording only three hits in 33 at-bats.
On April 29, 2017, Martin became the 15th catcher to record 10,000 career putouts at the position.
On June 20, 2018, Martin became the 11th catcher to make 11,000 career putouts at the position. Martin endured his worst offensive season of his career, hitting .194 with 10 home runs and 25 RBIs. In the final game of the 2018 season, Martin managed the Blue Jays, the team wound up losing in his managerial debut.
Russell Martin