Because of its importance as a key factor to economic development, the study of entrepreneurship has been considerably developed in the past decades. Entrepreneurship is broadly diversified, which is associated with, for example, studies in the field of business, social, female, and young entrepreneurship. If, on the one hand, it is a fact that entrepreneurship and its study are mainly associated with the private initiative, there is, on the other hand, a question to be asked: Is there entrepreneurship in the public sector? Though still incipient, the study of entrepreneurship applied to the public sector and the acts of the public managers as entrepreneurs have revealed themselves to be themes with increasing interest. To contribute to a better conceptual understanding of this theme, namely its questions, ideas, and current debate, this work presents some theoretical reflexions and a relevant literature review on entrepreneurship in a public sector context.