2001–02 United States network television schedule (late night)

The 2001–02 United States network television late night schedule covers the programming aired by the major broadcast networks (ABC, CBS, NBC, Fox, UPN, and The WB) during the late night time slots, generally considered to be from 11:00 PM to 6:00 AM Eastern and Pacific Time. This schedule reflects the shows that were regularly broadcast during these hours, and does not include specials, sports broadcasts, or occasional preemptions. Key programming during this period usually included late-night talk shows, reruns of primetime series, and syndicated programs. Each network aimed to provide a mix of content to appeal to the late-night viewing audience. The late-night landscape during this period was generally dominated by established talk show hosts and a mix of comedy and news programming. Specific schedules for each network can vary depending on the affiliate's programming choices outside of network-provided content.