Raggi's announcement follows months of speculation.
Raggi reportedly announced her candidature plans during a video-conference with city councillors on the afternoon of 10 August.
The 42-year-old member of the Movimento 5 Stelle has been mayor of Rome since 22 June 2016.
Her current term of office comes to an end in 2021.
Latest Yellow Pages
EVENTS THIS WEEKview calendar
Rome areasall Rome areas
CUSTOMER CARE AGENT IN TOURISM
Rome-based writers needed (remote)
2-bedroom penthouse near Piazza Bologna for rent
Primary School Teacher Position