How do you say Justin in Japanese?

Answer 1

'Jasutin'

Answer 2

'Kurosaki' is originally Japanese, and can be written different ways. 'Justin' is written ジャスティン /ja su tin/. If you mean Bleach anime's protagonist's surname in particular, then it would be [黒崎 ジャスティン] /ku ro sa ki ja su tin/.

(Note: Surname comes before forename in Japanese so saying 'Kurosaki Justin' instead of the other way around is more Japanized way of saying it.)

Answer 3

"Justin" isn't a Japanese word, so it has no special meaning.
The name would be pronounced "Ja-su-tin" in katakana.

Answer 4

The name 'Justin' isジャスティン (jasutin) in Japanese. The 'u' sound is mostly silent.

Answer 5

Jasutin (Ja-soo-teen)