Homo Deus: A Brief History of Tomorrow is a book written by Israeli author Yuval Noah Harari, professor at the Hebrew University in Jerusalem. The book was first published in Hebrew in 2015 by Dvir publishing; the English-language version was published in September 2016 in the United Kingdom and in February 2017 in the United States.

Yuval Noah Harari is an Israeli author, public intellectual, historian and professor in the Department of History at the Hebrew University of Jerusalem. He is the author of the popular science bestsellers Sapiens: A Brief History of Humankind (2014), Homo Deus: A Brief History of Tomorrow (2016), and 21 Lessons for the 21st Century (2018). His writings examine free will, consciousness, intelligence, happiness, and suffering.