Most-nominated performers without a competitive win:
Male:Peter O'Toole, 8 nominations -- all for Best Actor (O'Toole received an Honorary Oscar® at the ceremonies in 2003.)
Female:Deborah Kerr, 6 nominations -- all for Best Actress (Kerr received an Honorary Oscar® at the ceremonies in 1994.)
Thelma Ritter, 6 nominations -- all for Best Supporting Actress