What's the origin of the surname Alba and what does it mean?

Question

What's the origin of the surname Alba and what does it mean?

Answer 1

Alba: Last name origin & meaning:

Spanish, Italian, and Romanian: habitational name from any of the places named in any of these languages with this element. Its meaning is various and disputed; the coincidence in form with Latin alba (feminine) ‘white’ is suggestive, but in many cases the name is pre-Roman and denotes a site on a hill or mountain.

Answer 2

Alba:

Spanish, Italian, and Romanian: habitational name from any of the places named in any of these languages with this element. Its meaning is various and disputed; the coincidence in form with Latin alba (feminine) ‘white’ is suggestive, but in many cases the name is pre-Roman and denotes a site on a hill or mountain.