Subbier Appadurai Ayer (born 1898) was the Minister for Publicity and Propaganda in Subhas Chandra Bose's  Azad Hind Government between 1943 and 1945, and later a key defence witness during the first of the INA trials. Ayer had travelled to Bangkok in November 1940 as a Special correspondent for Reuters before joining the Indian Independence League. In October 1943, Ayer was appointed the Minister of publicity and propaganda in the nascent Azad Hind Government.