The IEEE International Conference on Program Comprehension (ICPC) is the principal venue for works in the area of program comprehension, which encompasses both the human activity of comprehending software, as well as the processes and technologies for supporting it. ICPC 2013 promises to provide a quality forum for researchers and practitioners from academia, industry, and government to present and to discuss state-of-the-art results and best practices in the field of program comprehension. ICPC 2013 solicits full and short research papers, tool-demonstration papers, industrial-experience papers, student research symposium papers, and posters.