Alison Krauss
As of 2018, she has won 27 Grammy Awards from 42 nominations, tying her for the second most awarded recipient alongside Quincy Jones, second only to classical conductor Georg Solti, who holds the record for most wins with 31. She is the most awarded singer and the most awarded female artist in Grammy history.
Grammy Award records
The most Grammys won by an engineer or mixer in one night is six. At the 59th Annual Grammy Awards in 2017, Tom Elmhirst won Record of the Year, Album of the Year, Best Pop Vocal Album, Best Engineered Album Non Classical, Best Alternative Music Album and Best Rock Album for his work on Adele's '25', David Bowie's 'Blackstar' and Cage The Elephant's 'Tell Me I'm Pretty'.