Michelle will also be seated with Olympic gold medallist Dame Kelly Holmes at the dinner in 10 Downing Street Supermodel Naomi Campbell will be among celebrities present from the worlds of fashion, sport, business and the arts, reports The Telegraph.
British celebrity chef Jamie Oliver will be preparing the menu, which will feature seasonal produce including Welsh lamb, Jersey Royal new potatoes and asparagus.
Other guests will include Martha Lane Fox, founder of the website lastminute.com and a trustee of legal action charity Reprieve, and Dame Tanni Grey-Thompson, the Paralympian.
Jasvinder Sanghera, who runs the anti-forced marriage charity Karma Nirvana, Welsh actress Ruth Jones, who appears in TV show Gavin And Stacey, psychologist Tanya Byron, and broadcaster Emma Freud are also invited.
The spouses will have the same menu as the G20 leaders, dining elsewhere in 10 Downing Street.