Nuno Paulo de Sousa Arrobas Crato, GCIH, GCPI (born 9 March 1952) is a Portuguese university professor, researcher, applied mathematician, economist, and writer.

He has been a regular presence in several television programs including 4 vezes ciência for RTP and Mário Crespo's Plano Inclinado for SIC Notícias.

Currently a full professor of mathematics and statistics at the Lisbon School of Economics and Management, Crato has published on the fields of time series analysis and probabilistic models, with applications in econometrics, computer algorithms, human behavior, and other topics.

During his tenure, mandatory schooling was increased from 9th to 12th grade, dropout rates were substantially reduced (from 23-27% to 13.7%), English was introduced as a mandatory subject, retention decreased to historical low levels, and academic results improved.

A few analysts[3] explain these advances by some of the educational measures put in place during his tenure: the development of more demanding curricula, the external evaluation of students, teachers and schools, and the creation of vocational paths.

In addition to his scientific research contributions [1], he has published extensively in the fields of science popularization and education.