Philou is a ♀ female name.
Philou is presumably a name of Greek or French origin.
Philou means “loving”, “loved one” or “love” (from ancient Greek “philein/φιλεῖν” = to love or “philíā/φῐλῐ́ᾱ” = friendship/love) and “crook” or “swindler” (from French “filou”).