The artwork, by The Rebel Bear, depicts the Reform UK leader being carried by a flying pig.

Farage is shown with an elongated nose – in reference to the fairy tale character Pinocchio, whose nose grows whenever he lies – and is also wearing a pair of underpants which are on fire.

The mural on Charlotte Street (Image: Supplied)

The mural appeared at Charlotte Square, which leads from the Barras down to Glasgow Green.

It comes amid allegations that Reform UK has breached political donation rules by having polling paid for by an overseas company, which would be illegal.

READ MORE: Police issue plea after protester ‘assaulted’ at Reform UK conference

Undercover reporting by Channel 4 News found that Reform took funding from a US firm for three polls it commissioned earlier this year, costing £32,500.

Farage is captured on video saying the planned donation is “all above board”, although he later claimed he “wasn’t even listening” in the conversation he took part in.

The Reform UK leader is also under investigation for an undisclosed £5 million donation he received from crypto billionaire Christopher Harborne – an investigation which led to Farage resigning from his seat in order to trigger a by-election.

The allegations overshadowed Reform UK’s party conference last weekend, which saw a number of protesters violently assaulted by attendees.

One passerby who spotted the mural told The National: “When I saw it, I thought it was an accurate portrayal of the biggest grifter in the game.”

The mural on Charlotte Street (Image: Supplied)

People have also taken to social media to express their delight at the artwork, praising it as “perfection” and “unreal”.

One user wrote: “His nose is still not long enough [crying emoji] and these burning pockets!”

Another said: “Bloody brilliant!”

The Rebel Bear is a street artist based in Glasgow.

Their identity is unknown, leading many to refer to them as the “Scottish Banksy”.

The artist cloaks their identity while creating the artwork by wearing a bear costume.