The run starts on 25 September in Hartford, Connecticut, spans North America, Europe and the UK, and includes multi-night stops in Los Angeles, Brooklyn, London, Paris and Milan.
The tour backs Rodrigo's third album, "You Seem Pretty Sad for a Girl So in Love," due 12 June via Geffen, with support acts including Wolf Alice, Devon Again and The Last Dinner Party.
General ticket sales begin on 7 May, with presales from 5 May; $20 Silver Star tickets return, and part of ticket proceeds will support Rodrigo's Fund 4 Good.
As concert giant Live Nation posts record profits, will fans actually score Olivia Rodrigo's promised $20 accessible tour tickets?
After its antitrust battle, will Live Nation's pricing for this tour prove the system is fixed or broken for fans?
Will Olivia Rodrigo’s new “mature” album about a “big girl” relationship still connect with her massive young fanbase?