The name Grace would be written as グレース (gureesu) in Japanese. The pronunciation would roughly be like "goo-ray-sue".
グレイス /gu rei su/ is the Japanese equivalent of 'Grace' as a name.
Gureisu <3 ^^
If you mean the word 'grace' itself transliterated into Japanese it would be グレイス /gu rei su/. If you mean an equivalent for it in Japanese you can use 優美 /yuu bi/.
Grace Slick's birth name is Grace Barnett Wing.
Grace Kelly Nancy Grace
Grace Jones' birth name is Grace Mendoza.
Grace Stafford's birth name is Boyle, Grace.
Grace Valentine's birth name is Grace Sharrenberger.
Grace Raimo's birth name is Grace Spagnuolo.
Grace Paley's birth name is Grace Goodside.
Grace Faugno's birth name is Grace Valastro.
Grace Elliston's birth name is Grace Rutter.