Matt Duffer, American film director, writer, and producer

Matt Duffer and Ross Duffer, often credited as the Duffer Brothers, are both American television writers, directors, and producers. The brothers are identical twins and work on all their projects as a pair. They are best known as the creators, directors, and executive producers of the Netflix science fiction horror series Stranger Things (2016-2025), and have also written and directed the horror film Hidden (2015) and written and produced episodes of the Fox science fiction series Wayward Pines (2015–2016). The Duffer Brothers founded the production company Upside Down Pictures, which is in an overall deal with Netflix.

February 15 is the 46th day of the year in the Gregorian calendar; 319 days remain until the end of the year.