Erin Miller

Miller Erin
GTD Program Manager, START
University of Maryland
Former Investigator

Erin Miller is the program manager for the Global Terrorism Database (GTD) at START headquarters at the University of Maryland. Miller earned a BA in Sociology from the University of Pennsylvania, and an MA and PhD in Criminology and Criminal Justice from the University of Maryland. Her research investigates patterns of decline among terrorist organizations and movements worldwide, using innovative statistical analysis of data from the GTD. She has taught statistics courses at the University of Maryland and delivered invited lectures on the GTD and the implications of research methodology for terrorism research.

Miller has been part of the GTD team since 2004. Her roles have included improving the consistency of the data and adding key variables to the database, developing efficient and effective data collection strategies and training, and producing accessible analysis that provides context for current events in terrorism and counter-terrorism. She frequently consults with users of the database, including researchers, policy makers, analysts, journalists, and students. For six years, Miller authored the Statistical Annex for the U.S. State Department’s Country Reports on Terrorism (2012--2017). She has served as principal investigator on a number of START research projects related to the GTD, including the Terrorism and Extremist Violence in the United States (TEVUS) platform, the Profiles of Perpetrators of Terrorism in the United States (PPT-US) database, and the Program to Prepare Communities for Complex Coordinated Terrorist Attacks.


  • University of Maryland, Ph.D., Criminology and Criminal Justice, 2015
  • University of Maryland, M.A., Criminology and Criminal Justice, 2005
  • University of Pennsylvania, B.A., Sociology, 2002
Professional Experience:
  • University of Maryland, Global Terrorism Database Manager, 2009-present

Selected Publications

Global Terrorism in 2018 (Background Report)
Global Terrorism in 2017 (Background Report)
Overview: Terrorism in 2016 (Background Report)
Terrorism in Mali (Fact Sheet)
Overview: Terrorism in 2014 (Background Report)
Boko Haram Recent Attacks (Background Report)
Terrorism and the Olympics (Background Report)
ETA Ceasefires by the Numbers (Background Report)

News References

Olympics and Terrorism (Featured Research)