A popular choice right now in Japan, where it recently ranked in the Top 10.

Akane

A popular Japanese name for both sexes that's migrated to the West because of its appearance in manga and video games.

Akira

Asuna

Ayako

Beniko

A popular Japanese name used for the young heroine of the animated film, "Spirited Away."

Chihiro

Chieko

Chiyoko

As an English nickname, Emi can be short for anything beginning with (or containing) the popular "em" sound, such as Emily, Emilia, or maybe even Clementine.

 As a Japanese name, it can be formed of various different combinations of kanji characters, with different meanings.

A fresh and pretty Japanese name which would be an unusual route to the popular Emmy/Emi nickname. In Japanese, this name can be formed from a variety of different kanji combinations with different meanings, but "laughing child" and "beautiful child" are two appealing possibilities.

Emiko

Short and sweet Eri is a common female name in Japan that could cross cultures quite easily.

Etsuko

Eiko

Emiyo

Eshima

Fumiko

Fuji

Hanako has a delicate sound and quaint meaning -- but there's a catch. According to widespread urban legend in Japan, Hanako is the name of the ghost of a little girl who haunts school bathrooms, who sometimes answers if you call her name. The so-called "Hanako of the Toilet" has been the subject of countless fictional adaptations since the rumor started to circulate in the 1950s. Hanako was once such a common name that it was used in the Japanese equivalent of "Jane Doe," but it's gotten much less popular as the legend of Hanako-san has spread.

Hanako

Haruhi

An extremely common Japanese name, especially among women.

Haruka

A traditional possibility for a Japanese or Japanese-American child born in April or May. 

Haruko

Hikaru

Hiroko

Hiromi

Short and catchy form of traditional Asian name. 

Hoshi

Haia

Haruki

Hatsuko

Hayami

Hiriko

Hisa

Honoka

Humiya

Seen as both a given name and a surname in Japan. There was a Princess Izumi in eighth-century Japan, forbidden from marriage as her older sisters had already been paired off with the Emperor's sons. 

Izumi

Japanese mountaineer Junko Tabei was the first woman to reach the summit of Mount Everest, and the first to reach the summits of the tallest peaks on all seven continents.

Junko

Kairi is the name of the main female character in the popular role-playing video game series, Kingdom Hearts. Voiced by Hayden Panettiere in the main series, Kairi is one of the seven Princesses of the Heart. Kairi entered the US Top 1000 in 2010 and was given to over 400 baby girls in one recent year.

Kairi

Kaiya reached a peak of Number 652 in 2002. This spelling performs worse than its sisters Kaia and Kaya, and it likely creates more pronunciation confusion.
 Kaiya Jones is a Scottish-born Australian actress best known for her work on Australain soap opera Neighbours.

Kaiya

Kana

Kaori is a Japanese girls' name once largely unknown but brought into the spotlight by celebrity couple Eniko and Kevin Hart, who gave it to their daughter in 2020. Kaori is easily translated in the Western World; it's got a rhythmic sound and a familiar feel, maybe since it's similar to Maori, the name of the people and language of New Zealand. But the correct pronunciation is kow-ree.

Kaori

A European nickname for Katherine variations.

Kata

Katana is a male name in Old Persian and a well-used word in Japanese, but as a girls' name is these days found more often as Kitana, the name of a princess in the video game Mortal Kombat II.

Katana

Kazuko is a Japanese feminine name that combines the character kazu ("harmony") with ko ("child"), creating a name that in total symbolises a child of peace. In Japan, names ending in ‘ko’ are rarely used as they now sound oldfashioned. More ‘trendy’ names are Kazumi (which means beautiful peace and can me used on both boys and girls), Kazuki (a masculine name meaning hope of peace) and Kazuo (also a masculine name meaning man of peace). The emphasis is on the first syllable, so it is said "KA-zoo-ko".

Kazuko

More common for girls in Japan, thanks to the prevalence of the related name Keiko.

Japanese classic with optimistic meaning. 

Keiko

This simple, bright Japanese name is used on both boys and girls and has numerous meanings. It can be interpreted as meaning "righteous" and "prince", or a combination of mi meaning "beautiful" and ki meaning "hope", "seasons" and "valuable".
 
Popular in the 17th century, the name might now be associated with the kimmidoll™, a Japanese doll inspired by traditional Kokeshi dolls.
 
Kimi can also be considered the Hawaiian form of Jamie (from Kimo) or a short form of Kimberley or Kimball.

Kimi

Kimika

Kimiko

Kiyoko

The name of a Japanese citrus fruit that is rising among baby girls in the US. The name Kiyomi was given to just under 200 baby girls in 2022.

Kiyomi

One of the most familiar and attractive Japanese names, though rarely heard outside that culture. 

Kyoko

Kagami

Kaida

Kaiyo

Kameko

Katsu

Kiku

Kioko

Kita

Kotoha

Kumi

Kuri

Maiya

For those who like names with lots of nickname possibilities, Makiko offers three sweet ones: Maki, Kiko, and Kiki.

Makiko

One of the most familiar Japanese names thanks to the first commoner to become empress of Japan and to New York Times book empress Michiko Kakutani. 

Michiko

Mika is a Japanese girls' name that translates easily to English. As a male name, it's a short form of Mikael, the Scandinavian and Finnish form of Michael. Both are spelled and pronounced the same.

Mika

Misaki

Most common in Japan in the mid-20th century, but to Western ears it doesn't sound dated.

Miyako

The meaning of this sweet Japanese name varies depending on the combination of kanji used, but the first element mi means "beautiful".

Miyuki

Momo

Momoko is a Japanese name meaning "peach child." It's also the name of a character in the popular Sailor Moon manga series.

Momoko

Maeko

Mariko

Masae

Matsuko

Mayuko

Mayumi

Mikazuki

Miku

Minako

Misako

Mitsuko

Momoka

Morika

Muika

To most English speakers, Nana is the dog in Peter Pan, the daughter played by Emma Stone in Crazy Stupid Love, and another name for Grandma.

Nana

Naoko is a common Japanese name with an admirable meaning, which, depending on how it's written, can translate to obedient, straight, honest, or green child.  Naoko can also be spelled Nahoko.

Naoko

Namika

Nariko

Natsuki

Nayoko

Nozomi

Nyoko

Okemia

Okimi

A sweet and simple Japanese name with several possible meanings, depending on the kanji characters used.

writernh's list "Japanese Girls Names" of 168 great name ideas: Akane - Yuriko!