Chatham University is a private university in Pittsburgh, Pennsylvania. Originally founded as a women's college, it began enrolling men in undergraduate programs in 2015. It enrolls about 2,110 students, including 1,002 undergraduate students and 1,108 graduate students. The university grants certificates and degrees including bachelor, master, first-professional, and doctorate degrees in the School of Arts, Science & Business, the School of Health Sciences, and the Falk School of Sustainability & Environment.

Founded as the Pennsylvania Female College on December 11, 1869, by Reverend William Trimble Beatty (the father of renowned operatic contralto Louise Homer), Chatham was initially situated in the Berry mansion on Woodland Road off Fifth Avenue in the neighborhood of Shadyside. Shadyside Campus today is composed of buildings and grounds from a number of former private mansions, including those of Andrew Mellon, Edward Stanton Fickes, George M. Laughlin Jr. and James Rea. It was renamed Pennsylvania College for Women in 1890, and as Chatham College in 1955. The name served to honor William Pitt, 1st Earl of Chatham and namesake of the City of Pittsburgh.The school gained university status from the Pennsylvania Department of Education on April 23, 2007, and publicly announced its new status on May 1, 2007, changing its name to Chatham University.