H. G. Haugan (November 7, 1840 – January 29, 1921) was a Norwegian-born, American railroad and banking executive.

Together with his brother Helge Alexander Haugan, he immigrated to Canada and moved to Montreal in 1859.

Haugan was bookkeeper and later acting cashier of Batavian Bank in La Crosse, Wisconsin from 1864 until 1870.

Haugan later served with the Chicago, Milwaukee and St. Paul Railway, as Land Commissioner and Comptroller.

[4] An invalid for several years before his death, Haugan died suddenly at his winter home in Pasadena, California, on January 29, 1921.