Keyrouz, also written as Kayrouz, is a Levantine Arabic surname. According to the historian Issam Farid Karam, the Keyrouz family traces its roots to the village of Ayn Halya in modern-day Syria.^[1]

Notable people with the surname include:

• Elie Keyrouz (born 1958), Lebanese politician
• Ghassan Keyrouz (born 1951), Lebanese alpine skier
• Jean Keyrouz (born 1931), Lebanese alpine skier
• Marie Keyrouz (born 1963), Lebanese nun and chanter of Oriental Church music
• Rabih Kayrouz (born 1973), Lebanese fashion designer
• Raymond Kayrouz (born 1970), Lebanese alpine skier
• Naji Keyrouz (1960–2019), Lebanese judoka

• Danny Thomas (born Amos Muzyad Yakhoob Kairouz; 1912–1991), American entertainer