For this Rob Alan there are 4 different names on Yasni.
In the ranking of the most common first names Rob Alan is on position 4587.
Male first name (English): Rob, Old High (two-part name); hruod = fame; beraht = bright, shiny, old Germanic or German two-part name, common in the Middle Ages in Northern France and brought from there to England
Male first name (German, English, Scottish): Alan, Celtic (Word format); al = the rock, came in the Middle Ages with the Normans to England significance not sure clarified, perhaps of Celtic and Breton 'al' (rock)
