Olivia, a lovely Shakespearean name with an admirable balance of strength and femininity, is the Number 1 name for baby girls in the US and one of the top girls' names around the world.

Oliver is an international star, ranking near the top of the charts throughout the English-speaking world and in a host of European and Latin American countries, from Norway to Chile, Slovenia to Switzerland. Why? Because Oliver is energetic and good-natured, stylish but classic, with a meaning symbolizing peace and fruitfulness.

Though greatly overshadowed by the trendy Olivia, Olive has a quiet, subtle appeal of its own -- and is now enjoying a remarkable comeback. Olive is one of only four girl names starting with O on the US Top 1000. Cool couple Isla Fisher and Sacha Baron Cohen chose it for their daughter, reviving the name to stylishness, and now Drew Barrymore has a little Olive too, as has country singer Jake Owen.

Down-home nickname name once associated with the friendly dragon on kids' TV. As Oliver rises, we may well hear more Ollies.

Olea is an unusual botanical name that relates to both olive and oil, brought to public attention when it was chosen by actress Amy Adams as the middle name for her daughter Aviana. Olea is also an occasionally used Norwegian and Danish girl's name and is said to be an Old Hebrew word for night or moon.

A rarely heard Hebrew name whose zippy first initial Z transforms it from dated Yetta-like image to more lively Catherine Zeta Jones-like appeal.

Ollie is used less often as a nickname for the mega-popular Olivia or the stylish Olive than Ellie is for Eleanor or Allie for Allison. That may be because Ollie has a much longer use as a nickname for boys.

More and more frequently heard as the Gallic version of Oliver, Olivier could be seen as a tribute to the great British actor, Sir Laurence O.

An international form of the popular Olivia, Olivie would be pronounced almost identically to its chart topping sister in its native Czechia, where it ranks in the Top 200. English speakers might recognize it as the name of fantasy author Olivie Blake and may pronounce it as OH-lihv-ee, with three syllables, which could make it a feminine form of French Olivier.

Parents finding Olivia too popular first turned to Alivia and then went further with Alyvia. But making the spelling different does not improve on the original. If you love Olivia, name your daughter Olivia.

Most frequently seen as a surname of those with Italian or Spanish heritage. The Italian variation is a habitational surname denoting ancestors from the town of Revello, while the Catalan (sometimes spelled Revelló) derives from revell, meaning "wild olive tree."

A gem named for its green hue.

The adorable diminutive Livie is most often a short form of the popular Olivia and may also be spelled Livvy, Livvie, or Livi. But occasionally it may be short for the separate Ancient Roman name Livia or the Scandinavian Liv, both of which have different roots and meanings.

Slavic feminine form of Oliver, with definite potential in the era of Olivia and Olive.

The Icelandic form of Oliver, currently ranking in their Top 10.

Short form of Oliver or Olivier.

Olivia ranks in the Top 10 -- and sometimes even Number 1 -- in many countries now, so variations such as this Spanish form may get some attention.

An international form of popular Olivia, this variation is in the Top 10 in Lithuania and in the Top 50 in Slovenia. It is also used in Latvia, but typically transcribed as Olīvija.