Francesco Sleter [1](1685 – 29 August 1775) was an Italian painter, active in England.
He was in England by 1719 when he designed the stained glass windows for James Brydges, 1st Duke of Chandos in the chapel at Cannons, these are now in the church at Great Witley.
Other work at Cannons involved painting the staircase ceiling with the Triumph of Victory, the anteroom ceiling with an allegory of Eternity and Fame and the Best Bedchamber with an allegory of Love and Marriage.
At Grimsthorpe Castle for Peregrine Bertie, 2nd Duke of Ancaster and Kesteven in the mid-1720s he is attributed with painting the dining room ceiling with Liberal Arts and the staircase ceiling with Triumph of Cybele.
At Mereworth Castle for John Fane, 7th Earl of Westmorland he painted the gallery ceiling with Rococo ornament and various mythological subjects and also the East Bedroom ceiling with panels of playing cupids.