Meaning: “bright ruler.”
Bertil is an old French form of Berthold which is of Germanic origins and is composed of the elements beraht meaning “bright” and wald meaning “ruler.” The French feminine form is Bertille and was borne by two early medieval French saints. Bertille’s designated name-day in France is November 6.
Bertil is also used in Scandinavia. Other forms of the name include: