Amaya Espinal 's "Love Island USA" win was a no-brainer, according to New York City Mayor Eric Adams ... after all, she's from the true love island -- The Bronx!

We caught up with the 110th mayor in NYC's history Friday afternoon ... and, we asked him how he feels about Espinal -- an NYC native -- finding love on the hit reality show and taking home the $100K cash prize along with Bryan Arenales . Getty

Adams jokes that Espinal knows what love is because she's from the NYC borough ... a love island in and of itself.

He adds the savvy street smarts from the area can't hurt either.

As you know ... Amaya and Bryan won the seventh season of the hit show last month -- beating out Nic Vansteenberghe and Olandria Carthen for the top spot and the money. Getty

Adams also talke

See Full Page