Awadh Kishore Narain (A. K. Narain, 28 May 1925 – 10 July 2013) was an Indian historian, numismatist and archaeologist, who published and lectured extensively on the subjects related to South and Central Asia. He was well known for his book, The Indo-Greeks, published by Clarendon Press in 1957, in which he discussed the thesis of British historian Sir William Woodthorpe Tarn.