Majid Majid, who is Sheffield's first Green, Muslim and youngest-elected Lord Mayor, announced the news on Twitter, posted a photo of himself wearing a black t-shirt with the slogan 'Donald Trump is a wasteman' - and a sombrero, naturally.
He tweeted: "I Magid Magid, Lord Mayor & first citizen of this city hereby declare that not only is Donald J Trump (@realDonaldTrump) a WASTEMAN, but he is also henceforth banned from the great city of Sheffield!"
He added: "I further declare July 13th to be Mexico Solidarity Day!"
In a follow-up tweet, he also added a rundown of five reasons why Donald Trump is a 'wasteman' and five things we can do to 'beat Donald Trump':
Magid told indy100: "In this current climate of politics where fear and hate is widespread, the last thing we need is a world leader like Donald J Trump being a spurting cesspit of hate, stoking divisions between communities while scapegoating minorities.
"I am proud to be the Lord Mayor of a city where there is an amazingly culture of diversity. Where we don't tolerate racism and xenophobia; where we not only celebrate all our differences but also unite on the things we have in common.
"We need now more than ever to come together in spite of our differences and empower everyone in our society and collectively work towards building a future where love and tolerance prevail, and where everybody belongs."
Oh, and along with that, Majid also promised Sheffield the 'craziest' party in the UK if England win the World Cup, posting a video of him in his car celebrating England's win against Colombia last night
The video has racked up over 1,000 likes, which probably shows just how up for the UK's 'biggest/loudest/craziest' celebration party the people of Sheffield are - with one suggesting: "Big screen in the Peace Gardens for the final?"
I would definitely want to go to any party he's had anything to do with. Seriously, what a guy.
Featured Image Credit: ITV/PA