"Variant of Yusuf"
The name Youssouf is commonly a male name from the "Russian" origin.
Youssouf is the French spelling of Yusuf, the Arabic form of the name Joseph. The ou and ss represent the Arabic long vowel and doubled consonant in French orthography, so the name is the same one as Yusuf rather than a separate coinage. This spelling is used in francophone West Africa, where French is the language of administration and schooling, and it also appears among French speakers of North African and Middle Eastern origin.
Yusuf means "God will increase, God has added a child. A form of Joseph.".
The pronunciation of Youssouf is YOO-soof.