Nicholas Soussanin (born 16 January 1889, Yalta, Taurida Governorate, Russian Empire [present-day Crimea, Ukraine] – 27 April 1975, New York City, New York) was a Russian actor who settled and worked in the United States. He was married to the film star Olga Baclanova from 1929-39, and was the grandfather of actress Lanna Saunders.

He had at least two children (a son born from a previous relationship before his marriage to Olga Baclanova), and a son, Nicholas Soussanin Jr., born with Baclanova in 1930.