The Portugal forward suffered a last-16 exit with his nation after they were beaten by Belgium, but his big haul in the group stage ensured he was uncatchable by the rest of the forwards who went the distance.
Czech Republic striker Patrik Schick - who netted arguably the goal of the tournament with his incredible long-range effort against Scotland - also scored five, but Uefa’s tie-breaking criteria for those level on goals states that the next deciding factor is assists.
Ronaldo therefore claims the award, having set up Diogo Jota for a tap-in against Germany, while Schick did not register an assist.
Kane finished up the qualifying campaign as the top scorer on 12 goals and Gareth Southgate will hope the likes of Jack Grealish, Mason Mount, Phil Foden, Jadon Sancho, Raheem Sterling and Marcus Rashford can supply the bullets for the Tottenham striker.
A midfielder could also emerge as the top scorer, given the potential for a low-scoring tournament, as proven when six players tied on three goals at Euro 2012, including Mario Mandzukic, Mario Gómez, Mario Balotelli, Cristiano Ronaldo, Alan Dzagoev and Fernando Torres.
Here are the final standings in the race to land the golden boot.
5 - Cristiano Ronaldo, Portugal
5 - Patrik Schick, Czech Republic
4 - Harry Kane, England
4 - Karim Benzema, France
4 - Emil Forsberg, Sweden
4 - Romelu Lukaku, Belgium
3 - Georginio Wijnaldum, Netherlands
3 - Robert Lewandowski, Poland
3 - Haris Seferovic, Switzerland
3 - Xherdan Shaqiri, Switzerland
3 - Raheem Sterling, England
3 - Alvaro Morata, Spain
2 - Pablo Sarabia, Spain
2 - Ferran Torres, Spain
2 - Thorgan Hazard, Belgium
2 - Ciro Immobile, Italy
2 - Matteo Pessina, Italy
2 - Federico Chiesa, Italy
2 - Lorenzo Insigne, Italy
2 - Manuel Locatelli, Italy
2 - Kasper Dolberg, Denmark
2 - Joakim Maehle, Denmark
2 - Yussuf Poulsen, Denmark
2 - Kai Havertz, Germany
2 - Roman Yaremchuk, Ukraine
2 - Andriy Yarmolenko, Ukraine
2 - Denzel Dumfries, Netherlands
2 - Memphis Depay, Netherlands
2 - Ivan Perisic, Croatia
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