Later, Shapovalov and Canadian partner Felix Auger-Aliassime lost in the doubles final to Kenneth Raisma of Estonia and Stefanos Tsitsipas of Greece 4-6, 6-4, 6-2.
In the girls doubles final, Usue Maitane Arconada and Claire Liu of the United States defeated Mariam Bolkvadze of Georgia and Caty McNally of the United States 6-2, 6-3.
LONDON (AP) - After Britain famously endured a 77-year wait between Wimbledon men's champions, Andy Murray has given the host country a pair of titles in quick succession.
Raonic remained under siege, saving break points in the first, seventh and ninth games of the second set before Murray cruised through the tiebreak for a two sets lead.
An unexpectedly routine contest came to life at the start of the third set when Raonic finally had two break points, only for a fired-up Murray to play his way out of trouble.
Murray also won the U.S. Open in 2012.
Raonic, brimming with confidence after conquering Roger Federer to become the first Canadian man to reach a grand slam final, was simply unable to knock down a Murray brick wall.
Unforced errors killed him too: 29. But Murray has thrived, with a counter-punching, defensive game and sublime returns of serve. Murray also won at Wimbledon in 2013.
Cometh the hour, cometh the man - Andy Murray proved himself the bastion of British tennis once again as he outclassed Canadian powerhouse Milos Raonic to claim a second Wimbledon title in masterful fashion on Sunday.
The 25-year-old Canadian was making his Grand Slam final debut, helped along the way by John McEnroe, who was in the opposite coaching corner to his old rival Ivan Lendl.
The Scot, under threat for the first time, produced a string of near-unplayable serves that Raonic simply couldn't come to terms with. But Murray actually won more of the rallies of four shots or less than Raonic. The second-seeded British player repeatedly managed to make returns off serves of more than 130 mph and 140 mph - including that 147 mph delivery at 4-all in the first set.
As a result of his impressive serve, Murray did not face a break point until the fifth game of the third set, and faced just two overall, winning them both. A Murray backhand long cleared one break point.
In the town centre the streets were empty, save for the cheers and groans coming from inside the town's pubs as the action ebbed and flowed on centre court.
At first there was an unenthusiastic ripple of applause before it turned to booing the Conservative leader.
Andy Murray and Milos Raonic are on Center Court and warming up for the Wimbledon final. "Andy has been playing great and he deserved to win, congratulations to him", Raonic said.
"It's the most important tournament for me every year", Murray said as he held the trophy tightly during the ceremony.
Murray had seven aces to Raonic's eight, a surprise given that Murray had 51 aces compared with Raonic's 137 entering the final.