Denis Ashton Warner CMG OBE (12 December 1917 – 12 July 2012) was an Australian journalist, war correspondent and historian.

[3] After his return from war service in the Middle East (1941–43), he came to the attention of Sir Keith Murdoch, who dispatched him to Asia with the directive to "tell us how it is".

Following the war's end, he worked for Reuters and the Australian Associated Press as head of the Tokyo bureau, from whence he reported on Japan's post-war experience and interviewed General Douglas MacArthur.

[3] In 1949, Warner was instrumental in publicising the case of Lorenzo Gamboa, a Filipino man targeted by the White Australia policy, after a chance encounter in a Tokyo post office.

[8] He continued to write on Asian affairs until 1983, also serving as a member of the Victorian State Advisory Committee of the Australian Broadcasting Corporation from 1979 to 1981.