A flagstone is a flat stone used for paving, fencing, or roofing.

Flagstone may refer to:

Places Flagstone, Queensland, Australia Flagstone Creek, Queensland, Australia Flagstones Enclosure, a Neolithic ditch enclosure in Dorset, England

Other uses Flagstone, a fictional town in the film Once Upon a Time in the West The Flagstones, working title of the TV show The Flintstones