Secombe died on 11 April 2001 at the age of 79, from prostate cancer, in hospital in Guildford, Surrey. His ashes are interred at the parish church of Shamley Green, and a later memorial service to celebrate his life was held at Westminster Abbey on 26 October 2001. As well as family members and friends, the service was also attended by Charles, Prince of Wales and representatives of Prince Philip, Duke of Edinburgh, Anne, Princess Royal, Princess Margaret, Countess of Snowdon and Prince Edward, Duke of Kent. On his tombstone is the inscription: "To know him was to love him."