Nunn has been married three times. He was married to Actress Janet Suzman from 17 October 1969 until their divorce in 1986. They have one child, Joshua. The Times reported in April 1986: "Janet Suzman, aged 47, the Actress, was granted a divorce in London yesterday from Trevor Nunn, aged 46, the theatre Director ... They have a son, Joshua, aged five." He has another two children, Laurie and Amy, with his second wife, Sharon Lee-Hill; they divorced in 1991. According to The Times, "Trevor Nunn, the theatre Director, was divorced yesterday by his wife Sharon Lee Hill."