A Metropolitan Police spokeswoman said officers were called to the park in Edmonton to reports of a man found hanged.
The spokesman added: “Officers and the London Ambulance Service attended and found a man, aged in his 20s, deceased.
“At this early stage, the death is not being treated as suspicious.
“Police are in the process of informing the man’s next of kin. A file will be prepared for the coroner.”
Mike Thalassitis found fame on the 2017 series of the show and was a semi-professional footballer.
Several reality TV stars posted tributes to Thalassitis after news of his death was reported.
Fellow Love Island contestant Chris Hughes tweeted: “His name wasn’t Muggy Mike. Please stop brandishing that. His name was Mike Thalassitis, and every inch of my heart goes out to his family & friends. A good guy, taken far, far to soon.”
Alex Bowen and Rachel Fenton, who both also appeared on Love Island, tweeted their respects.
Fenton tweeted: “I’m lost for words. My heart breaks for your family RIP @MikeThalassitis.”
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