He convincingly beat his compatriot England at the famous Crucible Theater, winning 18 frames against eight for his opponent.
The Rocket’s victory brings him closer to snooker greats Steve Davis and Ray Reardon for world title count, only Stephen Hendry winning more – with seven.
The pair came in on Sunday with a tight 10-7, but O’Sullivan quickly took control in Sheffield, needing just one frame in Sunday night’s session to win.
Despite its historic victory, it was celebrated more quietly than usual, with the crucible largely empty due to the coronavirus.
However, a small number of people were in attendance for the game, which acted as a pilot government event for the potential return of crowds to sporting events.
After winning, O’Sullivan – who pocketed a check for £ 500,000 – said: “I’m not here to break records and stuff like that.
“I think if I wanted to break records I probably wouldn’t play as well as I did. I think you have to play with as much abandon as possible and I think that means not putting too much meaning into the records.
“If I start looking at this trophy for the meaning and history it contains, I will probably freeze.” I think my biggest asset is that I can look like I’m in a practice game at the club when I play. at Le Creuset. ”
Beaten Wilson told the BBC: “I am a fighter. I will always be a fighter. I really struggled in the first session… I think we both probably had a hangover from the semi-finals and then I thought I would relax and take the chains off and that I was going to go.
“But, at the end of the day, the night belongs to Ronnie. He was incredible throughout the final. He showed his class when he was probably not quite at his best and still held up. “