| Othona | |
|---|---|
| Essex, England, UK | |
 View looking north towards the Chapel of St Peter-on-the-Wall on the site of the Roman fort | |
  Othona Location in Essex | |
| Coordinates | 51°44′06″N 0°56′24″E / 51.735°N 0.940°E |
| Grid reference | TM031081 |
Othona or Othonae was the name of an ancient Roman fort of the Saxon Shore at the sea's edge near the modern village of Bradwell-on-Sea in Essex, England. The Old English name Ythanceaster for the locality derives from the Roman name.[1]
- ^ CBA Report 18: The Saxon Shore, p. 8