Lee Maddison will carry the beacon past City Hall, in London, during a 24-hour relay through the capital ahead of the London 2012 Paralympic Games.
Mr Maddison, from Sedgefield , in County Durham, was selected by Lloyds TSB in recognition of his achievements in the disability sport of boccia, which is similar to bowls.
The 25-year-old, who has cerebral palsy, plays boccia for England and with friend Chris Jackson has launched a club in County Durham to encourage more disabled people to take part.
His grandfather, Bill Routledge, from Bishop Auckland , carried the Olympic torch along Claypath, in Durham City, during the nationwide relay before the Olympics.
Mr Maddison said: “I couldn’t believe it when I found out, especially when my granddad got to carry it as well.