January 10
Why this day? Guillou is a short form of Guillaume, and shares its name day.
Guillou is celebrated in France on January 10.
Guillou is a short form of Guillaume. It keeps its origin (Germanic) and meaning — the helmet of will, that which protects one's will, and shares its name day, January 10.
On birth records, Guillou is rarely written as such: the Guillous are Guillaumes (222,995 births). For the name's history, year-by-year popularity and famous bearers, read the Guillaume page.
Guillou is a short form of Guillaume, which means the helmet of will, that which protects one's will.
January 10, together with Guillaume: a short form shares the name day of the name it comes from.
It is a familiar short form. It does not appear as such in birth records, where you find Guillaume.
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