Sociotechnical thinking (STT) has recently emerged in response to technical-social dualism. It is defined as the ability to identify, address, and respond to both social and technical dimensions of engineering. As the number of publications on STT increases, so does the need to map the literature. This paper provides a scoping literature review of STT in engineering education, focusing on research purposes, methodologies, findings, and potential gaps. Our examination of 25 papers indicates that research on STT in engineering education covers a variety of purposes and methodologies. Key findings in the literature provide a better understanding of students' demonstration of and barriers to developing STT, the intersections between STT, engineering identity and culture, characteristics of STT, challenges and opportunities for teaching STT, and how prior knowledge and emotional connections can facilitate students' development of STT.