The 2019 Ovo Energy Tour of Britain was an eight-stage men's professional road cycling race.

It was the sixteenth running of the modern version of the Tour of Britain and the 79th British tour in total.

It is part of the 2019 UCI Europe Tour.

[1] A total of 20 teams raced in the 2019 Tour of Britain: 10 UCI WorldTeams, 5 UCI Professional Continental teams, 4 UCI Continental Teams, and a British national team.

Each team started with six riders for a starting peloton of 120 riders, of which 106 finished the race.