Freya has long been popular in the U.K. but has only taken off in the US in the last decade, along with the entire category of mythological names. Derived from the Old Norse name Freyja, meaning "Lady, noble woman", Freya is the name of the Norse goddess of love, beauty, and fertility.

Hiro is an apt name for a hero of the show Heroes -- and for our times. Widely used in Japan, sometimes also for girls. Hiroshi is a long form.

Khaleesi is an invented name introduced to the world by inventive and prolific author George R. R. Martin for his wildly popular Game of Thrones series—it's Dothraki for "queen" and is one of the titles of the character Daenerys. It entered the US Top 1000 in 2014.

Loki is the shape-shifting, gender-bending god of mischief in Norse mythology. Taking several animal forms, from a salmon to a seal to a fly, Loki is alternately friend and foe of the gods.

A popular Japanese name for both sexes that's migrated to the West because of its appearance in manga and video games and because of its international feel. It was a fast rising choice in 2024, when it entered the Top 1000.