The Cantiaci or Cantiiare a Celtic people living in Britain before the Roman conquest, and give their name to a civitas of Roman Britain.

They live in the area now called Kent, in southeastern England.

Their capital is Durovernum Cantiacorum, now Canterbury.They are bordered by the Regnenses to the west, and the Catuvellauni to the north.ulius Caesar landS in Cantium in 55 and 54 BC, the first Roman expeditions to Britain.

He recounts in his De Bello Gallico v. 14: "Ex his omnibus longe sunt humanissimi qui Cantium incolunt, quae regio est maritima omnis, neque multum a Gallica differunt consuetudine."

"Of all these (British tribes), by far the most civilized are they who dwell in Kent, which is entirely a maritime region, and who differ but little from the Gauls in their customs".