Oca is of Latin origin, derived from the Roman family name Oc(t)avius. It means 'eighth' and was traditionally given to children born on the eighth day of the month according to the ancient Roman calendar. Today, Oca is a unique and uncommon first name choice, adding an element of intrigue to its bearer.
"Oca had 6 births in 1894, followed by 5 births each in 1914 and 1917, making a total of 16 babies born over those years."