Under a deal between the network operator, Westminster Council and the Royal Borough of Kensington & Chelsea, work will begin this month on rolling out the service.
It will initially be available in a limited number of areas before being expended throughout the boroughs “over the longer term.”
The deal, which O2 says the deal has no cost to the taxpayer, will give residents and visitors to the boroughs free internet access on smartphones, computers and tablets.
Chief Operating Officer Derek McManus said the company aimed “to expand our footprint of O2 Wifi, which is open to everyone, and also intelligently enhance our services at street level, where people need the network the most.”