Newley died on 14 April 1999, in Jensen Beach, Florida, from renal cancer at the age of 67. He had first been diagnosed with cancer in 1985, and it returned in 1997 and spread to his lungs and liver. He was said to have died in the arms of his companion, the designer Gina Fratini. He was survived by his five children, a granddaughter Miel, and his mother Grace, then aged 96, who has subsequently died. Since then two more grandchildren have been born: Weston (Tara's second child) and Ava Grace (Sacha's first, with his wife Angela Tassoni).