Arthur's O'On (Scots: Oven) was a probable Roman temple which, until 1743, stood on rising ground above the north bank of the River Carron not far from the old Carron ironworks in Stenhousemuir, near Falkirk, Scotland. In fact the structure is thought to be the 'stone house' which gave its name to Stenhousemuir.
Henry Sinclair, Dean of Glasgow about 1560, calls it Arthur's Huif; and Alexander Gordon speaks of it as Arthur's Hoff. Julius's Hoff is also recorded. Hoff and Huif (cf. Scandinavian hov: throne) are Scots for a house or hall.
It has been suggested that the name 'Arthur is probably derived from the old Gaelic words Art, a house, and Om, solitary-meaning a retired dwelling or hermitage. The term 'oven' relates to the similarity in shape to the clay bread ovens of the 18th century.
In a Charter to Newbattle Abbey (Midlothian) in 1293 a reference is made to furnum Arthur, indicating that it was a well established feature and of unknown origin even at that relatively early date.
A road to Alloa and Airth passed by the back of the Forge Row and through the Stenhouse estate; Arthur's O'on stood on the north-east side of this road.
The building was on the declivity of rising ground, supported by a basement of stones, projecting out from below the lowest course of the building; it was so far from being upon a level area, that a great part of the basement, and four courses of the stones on the south side, were hidden in the earth. The marks of three or four steps, which may have formerly led from the ground to the entrance of the building, were visible at one time.
The traces of a broad ditch could be seen at one time on the northern side; suggesting that a regular vallum (rampart) and fosse (ditch) had once surrounded the building.