Jeffrey Michael Heer is an American computer scientist best known for his work on information visualization and interactive data analysis. He is a professor of computer science & engineering at the University of Washington, where he directs the UW Interactive Data Lab. He co-founded Trifacta with Joe Hellerstein and Sean Kandel in 2012.

Trifacta is a privately owned software company headquartered in San Francisco with offices in Bangalore, Boston, Berlin and London. The company was founded in October 2012 and primarily develops data wrangling software for data exploration and self-service data preparation on cloud and on-premises data platforms.