Count Mihály Ádám György Miklós Károlyi de Nagykároly (4 March 1875 – 19 March 1955) was briefly Hungary's leader from 1918 to 1919 during the short-lived First Hungarian People's Republic.
He served as Prime Minister between 1 and 16 November 1918 and as President between 16 November 1918 and 21 March 1919.