The Mellon International Dissertation Research Fellowship (IDRF) offers 9-12 months of support to graduate students in the humanities and humanistic social sciences who are enrolled in PhD programs in the United States and conducting dissertation research on non-US topics. Eighty fellowships are awarded annually. Fellowship amounts vary depending on the research plan, with a per-fellowship average of $20,000. The fellowship includes participation in an SSRC-funded interdisciplinary workshop upon the completion of IDRF-funded research.