"Variant of Musa"
The name Moussa is commonly a male name from the "Egyptian" origin.
Moussa is the spelling used in French and in francophone West Africa for the Arabic name Musa, which is the Arabic form of Moses. The double s follows French orthography, where a single s between vowels would be read as z. Related transliterations include Mousa and Musa.
Musa means "Saved, Taken from the water|Child".
The pronunciation of Moussa is MOO-sah.