Roman Catholic Inspired Names

Olaf, though sainted and regal in Norway, is slightly oafish here. It is one of those names that has become completely familiar in the U.S. without ever becoming assimilated. Now that he's a comical character in Disney's Frozen, he might get some more attention.

This Slavic form of the Norse name Helga is a classic in many Slavic countries, including Russia and Poland, where it currently ranks within the Top 100 girl names. It has historically ranked among the most popular names in countries including Ukraine, Latvia, Spain, France, Serbia, Greece, the US, and many more. Olga is a common name even in Scandinavian countries, such as Sweden and Norway, despite Helga being a more traditional choice. Olha is the uniquely Ukrainian variation.

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.

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.

Orion is a rising star, with both mythical and celestial overtones.

May rise along with other spiritually inclined names, but Americans might find it too close to Osama.

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.

Once too tightly tied to the aging musical clan featuring Donny and Marie, Osmond may now be able to escape that association and join the cooler group of Os and Oz names, which include Osgood, Ozias, and even Oswald.

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.

Form of Ottilie or Odilia

Otto is cool again. Long a quintessential Old Man Name, Otto has been promoted to trending darling of adventurous baby namers.

Owen, a resonant Celtic name, has ranked among the Top 100 boys' names in the US for 20 years and is now at its highest point ever.

Paloma is vibrant and ruby-lipped a la jewelry designer Paloma Picasso, but it also suggests peace, as symbolized by the dove. Paloma is a highly recommended striking but soft name, one of the best of the names that mean peace and girls' names starting with P.

The French-accented Pascal was historically used for sons born at Easter, and can make an interesting choice for a boy with Gallic roots arriving around that holiday.

Patience is a passive virtue turned engaging name, fresher than Hope, Faith, or even Charity. Its resemblance to the trendy Payton may be one reason that it returned to the US charts back in the 90's and 2000s, having been absent for a century.

Patricia still sounds patrician, though its scores of nicknames definitely don't. Wildly popular from the forties (alternately Number 3 and 4 throughout the decade) to the sixties, Patricia has been fading ever since. But a comeback in its full form is definitely conceivable—just look at Penelope.

Patrick, long tied to a hyper-Irish image, is enjoying something of a renaissance as a stylish classic, as it has long been considered in England. Along with such choices as Charles and George, Patrick has escaped overuse in recent decades.