The Lexelle-sponsored rider is the latest edition to the Manx mint which is a joint project by Isle of Man Stamps and Coins and the Manx Treasury.
It features a picture of the Morecambe rider in action on the island’s Mountain circuit.
Member of Treasury Philip Braidwood confirmed that it had been created in a bid to mark “the incredible achievements of the Morecambe Missile.
“We are delighted with the coin – it was always going to be difficult to capture the excitement and spectacle of a John McGuinness TT race,” he said.
“However I think we have achieved exactly that with our newly issued coin which would make a fantastic addition to any collection of a TT fan.”
John secured his first victory around the TT mountain course in 1999, and then in 2013 took the chequered flag to claim his 20th TT win!
The 50p coin is legal tender and will go into circulation this week.
John, who is most successful TT rider of all time next to the legendary Joey Dunlop, has also confirmed that he will appear at this year’s Barton Bike Night.
The annual event, which is the biggest event in the town’s social calendar, will take place from 5pm to 10pm, on Wednesday, July 2.
John is the second most successful TT rider of all time next to the legendary Joey Dunlop.
In 2007, he became the first man to break through the 130 mph barrier.