How to Say "Isaac" in Japanese

アイザック

Aizakku

The English name Isaac is translated into Japanese as アイザック (Aizakku).

アイザック is the Japanese form for the male given name Isaac.

Meaning: male given name (name)

How do you pronounce it?

The romanization is Aizakku.

If a person named Isaac wants a Japanese name for a seal or official document, they might choose kanji characters that mimic the sounds of アイザック while choosing meanings like 'love' or 'eternal'.
In a professional setting, a Japanese person would rarely call someone just アイザック. They would likely add the honorific さん 'san' to avoid being perceived as rude.
When referring to Isaac Newton, Japanese textbooks often use the full name アイザック・ニュートン, separated by a middle dot ・ to distinguish the first name from the last name.

アイザック・ニュートンは1642年12月25日に生まれた。
Isaac Newton was born on December 25, 1642.
This sentence is useful for mentioning the birth date of アイザック.
Tatoeba #3555827 by arnab, translation #2832271 by mervert1
アイザック・ニュートンは近代科学の祖とたびたび言われるが、彼の晩年はもっぱら錬金術を研究していた。
Isaac Newton is often referred to as the founder of modern science, but his final years were solely devoted to the study of alchemy.
This sentence is useful for noting that アイザック is often called the founder of modern science.
Tatoeba #182424 by sugisaki, translation #10035560 by tsp_2
アイザックさん、元気ですか？
Isaac, how are you doing?
アイザックはとても親切な人です。
Aizakku wa totemo shinsetsu na hito desu.
Isaac is a very kind person.

Two friends are talking about their classmates.

美咲 Misaki

新しいクラスメイトの名前は何ですか？
Atarashii kurasumeito no namae wa nan desu ka?
What is the new classmate's name?
陽太 Yota

アイザックという名前ですよ。
Aizakku to iu namae desu yo.
His name is Isaac.
美咲 Misaki

アイザックさんはどこから来たのですか？
Aizakku-san wa doko kara kita no desu ka?
Where did Isaac come from?
陽太 Yota

アメリカから来ました。
Amerika kara kimashita.
He came from America.

Sources

⭐Share⭐ to appreciate human effort 🙏