Musab is an Arabic name that means "hardy" or "one who endures hardship", from a root describing strength under difficulty. It honors Musab ibn Umair, a companion of the Prophet Muhammad who was the first ambassador of Islam to Medina, and it is popular among Arab and South Asian Muslim families. Musab has climbed from number 4970 in 2000 to a peak of number 2108 in 2023 and ranks number 2160 in 2025.