Royal Cortissoz (/kɔːrˈtiːzəs/; February 10, 1869 – October 17, 1948) was an American art historian and, from 1891 until his death, the art critic for the New York Herald Tribune. During his tenure at the newspaper, he consistently championed traditionalism and decried modernism. Of the latter, he once wrote, "It will someday prove a kind of Victorian 'dud', with a difference, obviously, but a 'dud' just the same."