A new law on the Costa Del Sol means that men going shirtless on holiday will risk being fined €750 - more than £655.
The ban will also apply to women - who will not be allowed to parade around town in their swimwear.
And wearing sex toys on their heads while attending hen and stag parties could also land holidaymakers with a hefty fine.
Frederic Zomero, the Mayor of Marbella, said the new rules are designed to preserve the classy image of the city.
It is understood they will also apply in Puerto Banus, according to Belfast Live .
It emerged in April that Marbella City Council was planning the measures to control rowdy groups of holiday makers as well as hen and stag dos descending on the glamorous destination, and hoped to have them in place in time for summer.
It is understood the decision was taken on the back of social media posts showing drunk tourists.
Official documents seen by Euro Weekly News then said the council was making it illegal to be "naked, semi-naked, with a naked torso, in underwear, with clothes or accessories that represent the genitals or other intimate body parts, or with dolls, devices, symbols or elements of a sexual nature" in public.
And that swimwear and bikinis were also being outlawed "except in swimming pools and on the beach".
Mr Zomero told Good Morning Ulster: "We have a city that is known all over the world for our image associated with quality tourism and with glamour. For us it is very important to preserve this image."
Asked if the new rules were designed for fat tourists with tattoos, he added: "The fat tourists are welcome to our city, we have many chances to make sport by our seaside.
"But we think some behaviours like to be without clothes at the centre of the city or to make stag and hens parties with sexual items on their heads for example - we don't think they are convenient for our image.
"We have to make our laws thinking of the future of our city. We have seen many other places in Spain, beautiful places, that doesn't act in any way and now the quality of the people that are visiting these kind of cities are lower than the people from the past."
It is reported that police will first issue offenders with a warning, but those who argue or ignore them will be slapped with a fine.
