INTRODUCTION: Our study reviewed the empirical evidence on the utilization of health care services by migrants in Europe, and on differences in health service utilization between migrants and non-migrants across European countries. SOURCES OF DATA: A systematic literature review was performed, searching the databases Medline, Cinahl and Embase and covering the period from January 2009 to April 2016. The final number of articles included was 39. AREAS OF AGREEMENT: Utilization of accident and emergency services and hospitalizations were higher among migrants compared with non-migrants in most countries for which evidence was available. In contrast, screening and outpatient visits for specialized care were generally used less often by migrants. AREAS OF CONTROVERSY: Utilization of general practitioner services among migrants compared with non-migrants presents a diverging picture. GROWING POINTS: Compared with previous systematic reviews, the results indicate a clearer picture of the differences in health service utilization between migrants and non-migrants in Europe. AREAS TIMELY FOR DEVELOPING RESEARCH: A comprehensive comparison across European countries is impossible because the number of studies is still limited. Further research should also help to identify barriers regarding the utilization of health care services by migrants.