How to Say "Cathy" in Japanese

キャシー

kyashī

キャシー (kyashī) is the Japanese way to write the female given name Cathy.

キャシー is used to refer to the name Cathy. It is written in Katakana, the Japanese script specifically used for foreign names and loanwords.

How do you pronounce it?

kyashī

Using the name キャシー without an honorific suffix like さん (san) is called 'yobisute'. In many Japanese social contexts, this is considered an intimate or aggressive act, even among people who are friends.
In Japanese storytelling, writing a name like キャシー in Katakana acts as a visual cue. It immediately tells the reader that the character is a foreigner before they even read a line of dialogue.
While キャシー is the standard spelling, a person could write the name using Kanji to give it a hidden meaning. For example, characters meaning 'pure' and 'jasmine' could be selected to represent the sounds of the name.

キャシーも行きましたか。
Did Cathy go, too?
Tatoeba #225850 by bunbuku, translation #63188 by CN
キャシーは花を摘むのをやめました。
Cathy stopped picking flowers.
Tatoeba #225848 by small_snow, translation #63186 by CN
キャシーはフランス語とドイツ語が話せる。
Cathy can speak French and German.
Tatoeba #225855 by KK_kaku_, translation #63193 by CN
Watashi no namae wa Kyasī desu. (私の名前はキャシーです。)
My name is Cathy.
Kono hito wa Kyasī to iimasu. (この人はキャシーと言います。)
This person's name is Cathy.
Kyasshī-chan wa itsumo genki desu ne. (キャッシーちゃんはいつも元気ですね。)
Cathy is always energetic, isn't she?
1 more sentence on Tatoeba

Two friends are discussing a person they both know.

陽太 Yota

キャシーはどこにいるの？
Kyashī wa doko ni iru no?
Where is Cathy?
陽葵 Himari

キャシーは今、カフェにいるよ。
Kyashī wa ima, kafe ni iru yo.
Cathy is at a cafe right now.
陽太 Yota

彼女に会えるかな？
Kanojo ni aeru kana?
I wonder if I can see her?
陽葵 Himari

きっと会えると思うよ。
Kitto aeru to omou yo.
I think you definitely can.

Sources

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