About the Leroux surname
The surname Leroux is associated with an older descriptive nickname. The surname means “the red-haired one” and originated as a nickname linked in particular to hair or complexion. A descriptive designation of this kind could become hereditary after first being used as an individual nickname. The same nickname could be given independently to different people, producing unrelated family lines.
Pronunciation:
Le-rou/ləʁu/