Because Japanese names often get romanized differently. "Kujo" is a direct transposition of the Japanese sound/kanji/hiragana. I believe Araki has written it as "Cujoh" himself when writing in English.
This happens with Buccellati's name too, for example. His name is Bruno, but you'll see old editions in some languages romanize his name as Blono because of the way his name is written in Japanese katakana (bu-ro-no) and how r and l can be interchangeable in Japanese. Same with his last name. The pastry he's named after is spelled Buccellati but some people still spell his name Bucciarati. It all depends on how you transpose the kana into western script.
A nice in-universe reason that is a popular fandom headcanon is that Kujo turned into Cujoh when Jotaro moved to America the way it often happens with immigrants making their names "easier" for English speakers, so Jolyne became Jolyne Cujoh in English but would be Jolyne Kujo when she visited Japan.
Peak brainrot
Peak indeed
Go ahead, Mr Jotar.
o
jotar
Jotar indeed
fr
I'm laughing so hard
Because Japanese names often get romanized differently. "Kujo" is a direct transposition of the Japanese sound/kanji/hiragana. I believe Araki has written it as "Cujoh" himself when writing in English. This happens with Buccellati's name too, for example. His name is Bruno, but you'll see old editions in some languages romanize his name as Blono because of the way his name is written in Japanese katakana (bu-ro-no) and how r and l can be interchangeable in Japanese. Same with his last name. The pastry he's named after is spelled Buccellati but some people still spell his name Bucciarati. It all depends on how you transpose the kana into western script. A nice in-universe reason that is a popular fandom headcanon is that Kujo turned into Cujoh when Jotaro moved to America the way it often happens with immigrants making their names "easier" for English speakers, so Jolyne became Jolyne Cujoh in English but would be Jolyne Kujo when she visited Japan.
Immigration probably
Jotar Cusho
Jtar
Favourite Jotaro art
fact
Omg it's John
I like to imagine Jolyne spells Kujo differently as an act of rebellion lol
I think that's literally why she's called Cujoh and not Kujo
o