Original boy names - Harry Potter universe

Oliver is an international star, ranking near the top of the charts in the US and throughout the English-speaking world, along with a host of European and Latin American countries, from Norway to Chile, Slovenia to Switzerland.

Unlike Pearl and Ruby and more like Jasper, this gem name works well as a boys name. With its strong final X, it feels similar to Alex, Phoenix, Jax, and Rex, while the shiny black quality of the stone feels reminiscent of Orion. Chosen by musician Iggy Azalea for her son in 2020, it has accelerated up the charts and now sits just outside the Top 300.

Oscar is one of the most stylish Old Man Names of our era. While it's softened slightly in popularity over the past 20 years, that may be considered a very good thing.

Ossian, or Osian, from the Old Irish name Oisin, was the son of Finn in Irish legend that was transformed into a Scottish hero in the Ossianic poems of James Macpherson in the eighteenth century--which also popularlized Oscar, Fingal, Selma and Malvina.

Despite the success of so many O-starting boys names--Oliver, Owen, Otis, Oscar--Oswald has not yet shown any signs of resurrection, though he does have the animating nicknames Ozzie/Ozzy and Oz. The name has some literary cred--in Chaucer's Canterbury Tales, Shakespeare's King Lear and a novel by H. G.Wells--and there was early cartoon character Oswald the Lucky Rabbit.

Ancient name, near obsolete now, but could make a good alternative to Owen for the adventurous baby namer.

This is an English surname dating back to 1086, but we don't see it having much of a first name future in the twenty-first century.

The revival of long-dormant Roman names would put this back in the lexicon if it wasn't so connected to a telecommunications network.

Roman is an ancient name trending in a major way. A surprise hit name of recent years, Roman now ranks in the Top 100 not only in the US but throughout the English-speaking world, and is rising in other European countries as well.

Sander is a more conventional form of Zander or Xander, heard frequently on its own in Europe. It is now a Top 20 name in Norway, and is also popular in Denmark, Belgium and the Netherlands. 

Seneca's distinguished heritage as the name of the ancient Roman philosopher-playwright who tutored Nero, and of an Iroquois tribe makes this an interesting choice for either sex.

Septimus is one of the more dashing of the birth-order Latin number names that were revived by the Victorians. So even if you don't anticipate son number 7, you might be bold enough to consider this relic, certainly preferable to sixth-son name Sextus.

With the rise of ancient Roman names, the now-obscure Silvius may be rediscovered. Sleek and silvery, Silvius was the name of several legendary kings and an early saint. It survives in the contemporary world in its Spanish and Italian form Silvio, used for the character played by Steven Van Zandt on The Sopranos.

One of the few ancient Roman names that doesn't end in us, the rarely heard Tarquin has a decidedly creative, even dramatic flair, which could appeal to the parent looking for a strikingly original name. Sir Laurence Olivier used it for his oldest child, who was named Simon Tarquin but called by his middle name.

This Scottish form of Thomas has a lot of charm, evoking images of men in plaid kilts playing the bagpipes. As for the 'ish' ending, it could either be seen as cozy and hamish, or a little wishy-washyish.

Teagan is a cousin of trendy names Reagan and Keagan now given to girls about six times as often as boys. As an Irish name, it's a diminutive of the original Tadhg. Teagan may also be a variation of the Welsh Tegan, a saint's name that means fair.

Never as well known as that other Roman numeral name, Octavius, Tertius just might hold some appeal for the parent seeking a really obscure name with the patina of antiquity for her third son.

One of the coolest of names, thanks to legendary jazz pianist Thelonious Sphere Monk, who inherited this Latin-sounding German name from his father. It has been used very sparingly since the 1960's, with just a sprinkling of baby boys receiving the name each year, though it's one of the unique baby names we predict will get much less unique as more parents embrace its quirky charms.