An increasing number of students complete an internship during their higher education studies in a country different from that of their home institution. A main advantage of this type of mobility is that it responds to employers' need for graduates with both hands‐on experience and global skills. In this paper, we attempt to review existing research on the types of skills higher education students gain through their participation in international internships. While there are several systematic reviews on study abroad programmes, this is, to the best of our knowledge, the first focusing on internship programmes abroad. Preferred Reporting Items for Systematic Reviews and Meta‐Analyses (PRISMA) approaches were used to explore four electronic databases (Scopus, Google Scholar, ScienceDirect and Resources Information Center). From these, 31 relevant studies were identified, and data were examined using a combination of thematic and content analysis. Intrapersonal skills (e.g., open mindedness, self‐confidence) are found to be the most frequently cited skills learned by participants. Many of the reviewed studies also report learning gains in terms of practical knowledge and language proficiency. On the other hand, there is less evidence suggesting that international internships enhance cognitive skills and leadership skills. The large majority of the reviewed studies, however, have methodological problems. A future research agenda is outlined, along with suggestions for improving the research methodology.