This article describes questionnaire data on Ph.D. (Doctor of Philosophy) entrepreneurship in Italy. The data includes (i) information recently collected via a questionnaire survey on Ph.D. students; (ii) background information on Italian academic institutions attended by students. We present here some descriptive statistics of the variables included in the dataset. The database includes the responses of 906 students. Students provided information on their employment condition, on their family background and opinions on the Ph.D. course and the institution they attended. Information on regional characteristics and on university policies are also included.