Janez Strnad (March 4, 1934 – November 28, 2015) was a Slovene physicist and popularizer of natural science.

In 1990 he wrote a book about fundamental particles physics entitled Iz take so snovi kot sanje (We are such stuff as dreams are made of).

With his short and long articles he had deepened the knowledge about Stefan's scientific work.

His thick booklet in the series of monographs, Zbirka Sigma (the Sigma Collection), entitled Kvantna fizika (Quantum Physics), (DZS, Ljubljana 1974) contains a definition and introduction to the understanding of Heisenberg's uncertainty principle for the graduate beginner.

Strnad's works also includes topics of physics which are not exactly related at first glance to it, for instance as in this his article Znanost in politika v vinjetah (Science and politics in vignettes)].