Isaac in Japanese Katakana

Tips for writing Isaac in katakana

• The small ッ is a short pause that doubles the next consonant. Write it half size; a full-size ツ would be read "tsu".
• Japanese syllables end in a vowel (except ン), so the final consonant of Isaac becomes ク (ku). Say it lightly.
• Katakana is written left to right like English, or top to bottom in vertical text. Keep every character the same size except the small ones.

Isaac on Japanese forms

Example full name: Isaac Smith → アイザック・スミス (Western order, names separated by ・).

Most Japanese forms put the family name first: スミス アイザック. In a フリガナ (furigana) field write it in katakana; if the field says ふりがな use hiragana (すみす あいざっく); some bank and card forms ask for half-width katakana (ｽﾐｽ ｱｲｻﾞｯｸ).

Japan has no official katakana spelling for foreign names. Once you use a spelling for a bank account, phone contract or employer, keep using the same one so your records match.

FAQ

How do you write Isaac in Japanese?

Isaac is usually written アイザック (aizakku) in katakana, the script Japanese uses for foreign names. In hiragana it is あいざっく.

Is there a kanji for Isaac?

No. Foreign names have no official kanji; they are written in katakana. Kanji versions offered online (ateji) are chosen only for sound and look, and their "meanings" are made up, so this site does not provide them.