Olympia is one of the female names beginning with the letter O. It comes from the Greek language, in which the word means "inhabitant of Olympus". Mount Olympus was known to be the home of the mythological god Zeus. It has equivalents in other languages as well as in the masculine form as Olympius.
Olivia is a feminine name that begins with the letter O. It comes from Latin and is related to the word "oliva", which means, among other things, the fruit of the olive. In Poland, in 2017, the name Oliwia was eleventh in the group of female names most often given to children. The counterpart in the male version is Oliwiusz.
Octavia is one of the female names beginning with the letter O. It comes from Latin, but may be taken from the Roman family of Octavius. Octavia's name day is usually celebrated on November 20. In Poland, it is estimated that the name appeared only in the nineteenth century. Her male counterpart is Octavius.