John Francis Smulski (sometimes "Smolski"; February 4, 1867 – March 18, 1928) was a Polish-American lawyer, banker and Republican politician who served on the Chicago City Council and as Illinois Treasurer.

[1] Born in Poznań in Prussian Poland, Smulski emigrated with his family to the United States in either 1876 or 1881 and settled in Chicago, Illinois.

In 1906 Smulski founded and became president of Northwestern Trust and Savings Company of Chicago, and sat on the board of directors of several other financial institutions.

As an adult he became active in Polish-American affairs, including heading the Polish National Department which coordinated food and other aid during World War I.

[4] The consul in Chicago later awarded him the cross of the French Legion of Honor, and Smulski also helped Poland negotiate loans after the war.