The Horrors will be supporting all ten dates, while Spector will perform at all but one concert - the March 9 date at London's Alexandra Palace.
Tickets for the shows go on exclusive pre-sale via the band's official website from 9am on Wednesday November 23.
The tickets will go on general sale from 9am on Friday November 25.
They're priced at £29.50 for all UK shows, while the Dublin concert costs between €35 and €40.
Florence + the Machine's tour dates of the UK and Ireland are as follows:
- March 2 - Dublin, The O2 Arena
- March 4 - Bournemouth, BIC
- March 5 - Cardiff, Motorpoint Arena
- March 6 - Nottingham, Capital FM Arena
- March 8 - London, Alexandra Palace
- March 9 - London, Alexandra Palace
- March 12 - Glasgow, SECC
- March 13 - Birmingham, LG Arena
- March 15 - Manchester, MEN Arena
- March 16 - Newcastle, Metro Radio Arena
Watch the music video for Florence + the Machine's 'No Light, No Light' below:
Florence + the Machine - Ceremonials album review
Florence + the Machine score second albums number 1 with Ceremonials