1972–73 United States network television schedule (late night)

These are the late night schedules on all three networks for each calendar season beginning September 1972. All times are Eastern/Pacific.

PBS is not included, as member television stations have local flexibility over most of their schedules and broadcast times for network shows may vary, CBS and ABC are not included on the weekend schedules (as the networks do not offer late night programs of any kind on weekends).

Talk/Variety shows are highlighted in yellow, Local News & Programs are highlighted in white.

ABC
Returning Series
 * The Dick Cavett Show

New Series
 * ABC's Wide World of Entertainment

CBS
Returning Series
 * The CBS Late Movie

Not returning from 1971-72
 * The Merv Griffin Show

NBC
Returning Series
 * The Tonight Show Starring Johnny Carson
 * The Weekend Tonight Show

New Series
 * The Midnight Special