Flagstone may refer to:

• Flagstone, a flat stone, usually used for paving slabs or walkways, patios, fences and roofing, or for memorials, headstones, facades and other constructions
• Flagstone, a fictional town and a key setting in the 1968 Sergio Leone spaghetti Western film Once Upon a Time in the West
• "The Flagstones" was the working title of the TV show that would later become The Flintstones

• Flagstone, Queensland, suburb of Logan City
• Flagstone Creek, Queensland, rural locality of Lockyer Valley
• Flagstones Enclosure, a Neolithic ditch enclosure in the English county of Dorset

This disambiguation page lists articles associated with the title Flagstone.
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