Harvard has a variety of programs and people in place to help students deal with any conceivable issue. A good list of the resources available is at this page: http://www.gsas.harvard.edu/current_students/what_to_do_if_you_need_help.php
A few key people and places are highlighted below.
Harvard Office of Student Affairs
The Office of Student Affairs (http://www.gsas.harvard.edu/current_students/student_affairs_office_3.php) is responsible for the welfare of graduate students and monitors their academic status, progress, and discipline.The Student Affairs Office also administers leave/travel applications and readmission applications.
Garth McCavana, Dean for Student Affairs
Location: Smith Campus Center 350
Dean McCavana has general responsibility for the welfare of graduate students and monitors students' academic status, progress and discipline. He oversees the GSAS Residence Halls, the Office of Student Services, and the Office of Housing Services in Dudley House. The Student Affairs Office administers the various graduate fellowship competitions and processes, leave and travel applications, intra-Faculty of Arts and Sciences transfer applications, and readmission applications. Dean McCavana represents students in disciplinary cases before the Administrative Board and advises students on sexual harassment complaints. He also coordinates orientation and commencement activities.
Patrick O'Brien, Assistant Dean for Student Affairs
Location: Smith Campus Center 350
Patrick O'Brien serves as a contact person and resource for the registrar, the departments, and other Faculty of Arts and Sciences and University offices in communicating and interpreting GSAS policies and in assisting graduate students in maintaining academic satisfactory progress. He coordinates the transfer and readmission process, the Exchange Scholar Program, the non-resident applications, and the Internship Program with the Office of Career Services. He provides advice to students throughout the petitioning process including extensions of incomplete, academic and financial credit, and add/withdrawals after the deadline. He advises international students about English as a Second Language resources. He assists with registration and commencement. He represents GSAS in the Teacher Education Programs (GSAS Option). This option allows graduate students to obtain their secondary teaching certification before they graduate.
The Graduate School of Arts and Sciences (GSAS) Student Services
Jacqueline Yun, Director of Student Services
In her role as Director of Student Services, Jacqueline (Jackie) Yun is the go-to-person for GSAS students. She serves in an advisory role, provides ongoing support, and makes referrals to other resources, as necessary. Whatever the issue, she is here to help.
Jackie also serves as a Title IX Coordinator in GSAS and she is available to talk to students who have any questions or concerns about sexual harassment or gender-based discrimination. In addition, Jackie supports all GSAS student clubs and organizations.
The Bureau of Study Counsel
5 Linden St, Cambridge
The Bureau of Study Counsel is a resource center for academic and personal development that encourages the learning and growth of the "whole person" in the interrelated realms of intellectual, emotional, and social life. Students consult the Bureau regarding a wide variety of academic issues and personal concerns, and the Bureau welcomes conversations with students about the interests, challenges, and dilemmas they encounter in their work and lives.