Harry Jacob Patterson (December 17, 1866 – September 11, 1946) was president of the Maryland Agricultural College from 1913 to 1917.

[3] He also served as vice president and director of the Hyattsville First National Bank.

During his tenure, the first women were admitted to the college and he established three years of high school education as a prerequisite to admission.

[5] He also served as the dean of the College of Agriculture after the school became the University of Maryland.

[1][3] Patterson built a Colonial Revival–style home at 7403 Dartmouth Avenue in College Park around 1918.