Persaius is an ancient Roman family name, derived from 'Persius', which means 'from Persia'. It was quite common during the early Roman Empire and has since become less prevalent. The name was borne by a notable Roman poet, Aulus Persius, who lived around 34-62 AD.
The name Persaius had a brief surge with 7 births in 2009, but it has since declined, with only a total of 18 births recorded over the three-year period from 2006 to 2009.