The event will be held on November 27 at the Royal Albert Hall, when awards will be given to businesses in the arts, culture, attractions, entertainment and accommodation sectors.
Visit London chief executive James Bidwell said: “We are delighted that Boris Johnson will be joining us on our night of nights.
“Tourism is worth £16 billion to our local economy and supports over 250,000 full-time jobs. The Mayor’s attendance recognises the vital contribution of our industry and Visit London’s role in driving and delivering the economic benefits of tourism.”
Johnson said: “It’s a pleasure to attend this year’s Visit London Awards, my first as Mayor. Tourism is critical to our capital as the industry’s success translates directly into jobs for London and Londoners.”