Last name Alnair (Alnair 
, نائر 
) , across the world, is a rare cognomen. The cognomen Alnair is habitual in Sudan, where it is quite a rare surname, Bahrain, where it is a rare surname, and Venezuela, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Sudan, Mexico, and Venezuela. Also, Alnair is the forename as well as the last name.