Cissonius

Cissonius was an ancient Celtic god. After Visucius, Cissonius was the most common name associated with Mercury.

Name

The name has been interpreted as meaning 'carriage-driver', or as 'dream-bringer'.
The forms Cissonius and Cissonia are also attested as personal names.

Cult

Cissonius is attested in the province of Germania Superior as well as in Promontogno, Avenches, Saintes, Besançon, where he is frequently associated with the Roman god Mercury. This widespread pattern of veneration suggests that Cissonius was not a local topographical spirit.
In one inscription from Promontogno, Cissonus is identified with Matutinus.
Cissonius alone is also mentioned on the Creuzwald dedication, implying that he may have existed as an independent Celtic deity and not simply as an epithet.