CBS This Morning (CTM) was an American morning television program that aired on CBS from November 30, 1987 to October 29, 1999, and again from January 9, 2012 to September 6, 2021. The program was aired from Monday through Saturday. It aired live from 7:00 a.m. to 9:00 a.m. in the Eastern Time Zone. On weekdays, it aired on a tape-delay in the Central and Mountain Time Zones; stations in the Pacific, Alaska and Hawaii Time Zones received an updated feed with a specialized opening and updated live reports. Stations outside the Eastern Time Zone carried the Saturday broadcast at varied times. The two incarnations of CTM were the eighth and tenth distinct morning news-features program formats to air on CBS since 1954. On November 1, 1999, the original incarnation was replaced by The Early Show, which was replaced by the second one on January 9, 2012.

The second incarnation emphasized general national and international news stories and in-depth reports throughout each edition, although it also included live in-studio and pre-taped interviews. The format was chosen as an alternative to the soft media and lifestyle-driven formats of competitors Today and Good Morning America following the first hour or half-hour of those broadcasts, in an attempt to give the program a competitive edge with its infotainment format. For all but a few ratings periods since 1954, CBS has historically placed a distant third in the ratings among the network weekday morning shows.

On August 31, 2021, CBS announced that the weekday program would be replaced with the reformatted CBS Mornings effective September 7, while the Saturday edition of CTM was renamed CBS Saturday Morning on September 18, 2021, completing the transition.