Nicolas Steno (Àdàkọ:Lang-da; ni Latini je Nicolaus Stenonis, Italian Niccolo' Stenone) (11 January 1638 – 25 November 1686) je ara ile Denmark to je asiwaju ninu imo anatomi ati jeoloji. Àṣìṣe ìtọ́kasí: Invalid <ref> tag; no text was provided for refs named Woods