List of longest-running American broadcast network television series

This is a list of the longest-running U.S. broadcast network television series, ordered by the number of broadcast seasons.

To qualify for this list, the programming must originate in North America, be shown on a United States national (not regional) television network, and be first-run (as opposed to a repackaging of previously aired material or material released in other media). For this list, series that were available only on a local or regional basis are excluded. The "number of seasons" total does not include cable broadcasts or series in syndication.