Konstantin Ciryl Halafoff or K. C. Halafoff (1902–1969) was a Russian white emigre and Australian poet and ornithologist interested in the musicology of bird song. Halafoff was born in 1902 in Moscow. After the Bolshevik Revolution in Russia he served with the White Army. In 1920 he moved to Yugoslavia where he resumed his interrupted studies and graduated from Belgrade University. After the Second World War he fled to Germany where he lived until moving to Australia in 1949. He published his poetry in various Russian emigre publications in Europe and Australia; one of his contributions being an essay on musical aspects of Boris Pasternak's language, published in a Russian literary review in Munich.