On behalf of the Quadrennial Energy Review (QER) Task Force, the National Academies of Sciences, Engineering, and Medicine hosted a workshop on February 8-9, 2016, titled "Electricity Use in Rural and Islanded Communities." The objective of the workshop was to help the QER Task Force public outreach efforts by focusing on communities with unique electricity challenges. The workshop explored challenges and opportunities for reducing electricity use and associated greenhouse gas emissions while improving electricity system reliability and resilience in rural and islanded communities. The report summarizes the presentation and discussion of the workshop.