Orba is of Latin origin and means 'golden'. It is believed to have been used by an early Christian martyr, whose name became venerated over time. The name gained popularity in the Middle Ages, particularly among Christians. Orba is also associated with the Spanish town of Orba, located in Valencia province.
The name Orba was fairly popular at the turn of the century, with a total of 41 babies born with this name between 1893 and 1924. However, its popularity seemed to wane over time, as there were more births in the earlier years (7 in 1893 and 7 in 1914) compared to the later ones (5 or fewer from 1916 onwards).