"Variant of Ruairidh"
The name Ruari is commonly a unisex name from the "Arabic" origin.
Ruari is an anglicised spelling of the Scottish Gaelic name Ruairidh, which corresponds to the Irish names Ruaidhri and Ruairi. These go back to Old Irish ruad, 'red', and ri, 'king'. Ruari is the spelling that appears in United States birth records, where it entered in 2003.
Ruairidh means "Noted".
The pronunciation of Ruari is ROO-ree.