What is the mailing address for harvard university? General Information. Primary mailing address: Massachusetts Hall Cambridge, MA 02138 Tel: (617) 495-1000 Employment. Jobs at Harvard. Media Inquiries. Harvard University Public Affairs & CommunicationsWhere is the harvard international office in cambridge ma? Harvard International Office 1350 Massachusetts Avenue Richard A. and Susan F. Smith Campus Center, 864 Cambridge, MA 02138. Phone: 617-495-2789 Fax: 617-495-4088 The HIO will be closed for walk ins and in person office hours or appointments until June 30, 2021.Where do i send my application to harvard college? Harvard College. University Hall Cambridge, MA 02138. Harvard College Admissions Office and Griffin Financial Aid Office. 86 Brattle Street Cambridge, MA 02138 Is the harvard international office open for walk in advising? Harvard Real Estate Harvard University Housing Office for Sustainability Transportation The Harvard International Office (HIO) remains closed for walk in advising.