Having gotten lost on the web the other day, I ran into an American Argentine actor called Carlos Alazraqui. Googling the last name revealed some people in the USA, such as Ed Alazraqui and others in Argentina, such as Marcio Alazraqui.

The name Alazraqui is definitely Arabic الأزرقي. It is derived from Azraq meaning "blue", which is a common appellation in early Arab times for people with blue eyes. Several people are known as Alazraq ("The Blue") because of that trait.

The Alazraqi form derives from this and could mean : one who is descended from a blue eyed person. One of the first people of note with the family name of Alazraqi is Abu Al Walid Muhammad ibn Abdallah al-Azraqi al-Makki, أبو الوليد محمد بن عبد الله الأزرقي المكي who died 223 A.H, a historian who lived and chronicled one of the first known histories of the holy city of Makkah.

In modern times, the name is used in Saudi Arabia, for example a biochemistry professor in Riyadh called Abdullah Alazraqi.

Carlos Alazraqui is said to be of Basque descent. Could the Basque Alazraqui be descendants of Al Azraq?

It would be unusual during post Reconquista Spain to carry an Arab name, let alone keep it for 4 centuries afterwards.