As entrepreneurship research is concerned with the entrepreneur's cognitive dimension, this paper proposes a particular focus on a mechanism of entrepreneurial thinking: design. While this notion is developing in the field of management, it is interesting to grasp its true dimensions in the field of entrepreneurship. The paper is divided into three parts. The first part examines the implicit place of design in the field of entrepreneurship. The second part presents how design can be linked to entrepreneurial thinking. The third and last part suggests a method for promoting the modelling of entrepreneurial design. The proposed reflection can help to strengthen research on organisational design.