Omaira is an intriguing Middle Eastern possibility.

A bird name from the same Latin root as Aurelia, Oriole is extremely rare as a name: No babies were given the name in the US in 2022. But most people are aware of the Oriole bird, which makes this name uncommon yet possible.

Ocean is a nature name that comes right out and states its meaning and association. Full of power and depth, Ocean is one of the fastest-rising baby names for both girls and boys, making the US Top 1000 for both genders in 2021. Oceane, the version that's trendy in France, was used for only 11 baby girls in the US in the same year. Ocean-lovers who want to be less obvious can choose such subtler names that mean ocean as Jennifer or Marissa, but coming right out and using Ocean is a perfectly valid way to go.

Though it has never charted in the United States, this frilly name has the elements some brave, modern namers might find attractive—namely, the initial O and the -ia suffix.

While we don't see many parents adopting Otter as a name for their own babies, Zooey Deschanel put this one in the lexicon when she used it as a middle name for her adorably-named daughter Elsie Otter. Even in the celebrisphere, Otter is one of the most unique baby names we've heard.

Odie is a charming feminine name that often functions as a diminutive for names like Odette, Odelia, or Odessa, though it has also gained usage as an independent name. With Greek roots, it's related to 'ode,' suggesting a lyrical or poetic quality. The name gained some recognition through the lovable dog character in the 'Garfield' comic strip, giving it a playful, friendly association. Odie has a vintage feel reminiscent of the early 20th century when short, sweet nicknames were often used as given names. Its simplicity and cheerful sound make it appealing to parents seeking something unpretentious yet distinctive for their daughters.

Nabisco has never revealed the origins of their sandwich cookie brand name, but the prevailing theory is that it was derived from Oreodaphne, a genus in the laurel family.

This name, rich with meaning, is one of the more widely-used names in the Nigerian diaspora.

Spanish and Romanian form of Ottilia or Odilia

Striking and glamorous, though perhaps just plain Zara is intriguing enough.

A very distinctive musical choice, but be aware that many people will think you've named your child Oprah.

An attractive name that's uncommon even in its native Finland. Onneli ja Anneli is a Finnish children's movie translated to English as Jill and Joy, although the names are unrelated.