Ralph Heimans, AM (born 1970) is an Australian-British contemporary portrait painter based in London, England. He is considered to be "one of today's leading portrait artists". He is best known for his large-scale Royal portraits of Queen Elizabeth II, Charles, Prince of Wales, and Prince Philip, Duke of Edinburgh, along with portraits of leading contemporary cultural figures. In 2014, Heimans was awarded a Member of the Order of Australia for Services to Portraiture.