Days of our Lives is an American soap opera which has aired nearly every weekday since November 8, 1965 on the NBC network in the United States, and has since been syndicated to many countries around the world. It also broadcasts on SOAPnet weeknights at 11PM ET/PT. The series was created by husband-and-wife team Ted Corday and Betty Corday along with Irna Phillips in 1964, and many of the first stories were written by William J. Bell.

Days is the only remaining serial on NBC's daytime schedule, and the only daytime program other than the Today Show and Early Today, both NBC News productions.

With the cancellation of Guiding Light which aired its scheduled final episode on CBS on September 18, 2009, Days of our Lives became the third longest-running soap opera in the United States, after General Hospital, which premiered April 1, 1963 followed by As the World Turns, which premiered on April 2, 1956.