The White Horse Stone is a name given to two separate sarsen megaliths on the slopes of Blue Bell Hill, near the village of Aylesford in the south-eastern English county of Kent.

Various archaeologists have suggested—although not proven—that the stones were each part of chambered long barrows constructed in the fourth millennium BC, during Britain's Early Neolithic period.

If the White Horse Stones were originally components of chambered long barrows, then they would have been erected by pastoralist communities shortly after the introduction of agriculture to Britain from continental Europe.

Since at least the 1980s, the latter has been viewed as a sacred site by various Folkish Heathen groups, including the Odinic Rite, because of its folkloric associations with Hengest and Horsa and the Anglo-Saxon Migration.

[1] This came about through contact with continental European societies, although it is unclear to what extent this can be attributed to an influx of migrants or to indigenous Mesolithic Britons adopting agricultural technologies from the continent.

[2] The region of modern Kent would have been key for the arrival of continental settlers and visitors, because of its position on the estuary of the River Thames and its proximity to the continent.

[5] Environmental data from the vicinity of the White Horse Stone supports the idea that the area was still largely forested in the Early Neolithic, covered by a woodland of oak, ash, hazel/alder and Amygdaloideae.

[6] Throughout most of Britain, there is little evidence of cereal or permanent dwellings from this period, leading archaeologists to believe that the island's Early Neolithic economy was largely pastoral, relying on herding cattle, with people living a nomadic or semi-nomadic life.

[11] These chambered tombs were built all along the Western European seaboard during the Early Neolithic, from southeastern Spain up to southern Sweden, taking in most of the British Isles;[12] the architectural tradition was introduced to Britain from continental Europe in the first half of the fourth millennium BC.

[14] Although now all ruined and not retaining their original appearance,[15] at the time of construction the Medway Megaliths would have been some of the largest and most visually imposing Early Neolithic funerary monuments in Britain.

[28] The chambers were constructed from sarsen, a dense, hard, and durable stone that occurs naturally throughout Kent, having formed out of sand from the Eocene epoch.

[42] In supporting this possibility, Evans noted that upright stone resembled a "chamber wallstone" akin to those at Coldrum and Kit's Coty House.

[58] A smaller, circular building approximately 3.75 metres (12 ft) in diameter was present just to the south-east of the longhouse;[59] there was little dating evidence for this, but what existed suggested a Late Neolithic origin.

[60] The archaeologist Timothy Champion noted that the presence of these structures does "not fit well" with the broader evidence for Early Neolithic life being "still partly mobile" but that this would be explained if the buildings were not residential.

[45] Jessup was openly critical of the link, stating that "stories of the god-like White Horse of Kent attached to [the stone] are quite without foundation", going on to describe such connections as "nonsense".

[45] In his 1924 publication dealing with Kent, the archaeologist O. G. S. Crawford, then working as the archaeological officer for the Ordnance Survey, listed the Upper White Horse Stone alongside the other Medway Megaliths.

[48] William Coles Finch then discussed the site in his 1927 work, In Kentish Pilgrimland, its Ancient Roads and Shrines, including a photograph of it; at this point it was in the open air rather than being found in a patch of woodland.

This account was produced by a vicar who stated that while he and a friend were returning to Burham from a visit to Boxley Church, they found themselves being pursued by "a lean grey dog with upstanding ears[… which] appeared as big as a calf."

[73] One folkish Heathen group, the Odinic Rite, was founded in 1973; its co-founder John Yeowell adopted the White Horse Stone as "the birth place of England" and held a blót ceremony there to "reclaim and make holy" the megalith.

[74] Some members of the Odinic Rite share the view of other modern Pagans that the White Horse Stone and other Medway Megaliths are connected to "earth energies" that pre-modern peoples were more "in tune with" than their contemporary counterparts.

[77] In 1987, members of the Odinic Rite formed the Guardians of the White Horse Stone, a group devoted to protecting the site; they installed timber steps from the Pilgrim's Way enabling visitors better access to it.

[78] The Guardians group fell dormant, although was revived in 2004 to deal with a new situation;[73] in 2003, the telecommunications company Orange sought planning permission to build a radio tower within a few metres of the stone.

The Odinic Rite, in tandem with another folkish Heathen group called Woden's Folk,[a] successfully petitioned Tonbridge and Malling Council to reject the proposal.