Evidence-based Entrepreneurship introduces the concept of evidence-based entrepreneurship (EBE), discuss the implications of EBE, and sketches out its opportunities and limitations. The users of EBE can be the scientists themselves, professionals who deal with entrepreneurs, policy makers whose policies affect entrepreneurs, students of entrepreneurship, and last but not least the entrepreneurs themselves. Much of the review is related to the idea of meta-analysis -- a quantitative review of the scientific literature -- to help determine how strong certain relationships are, how often a relationship consistently appears across studies, and how much we can trust the methodological rigor of the research. A meta-analysis provides the best available type of evidence because it goes beyond one methodology, one study, and one researcher. Evidence-based Entrepreneurship provides a great opportunity that is relevant for practice and policy while strengthening the empirical and theoretical...