GMA3: What You Need to Know (often shortened to simply GMA3) is an American daytime news program broadcast by ABC. Anchored by DeMarco Morgan and Eva Pilgrim, it is an afternoon spin-off of ABC's national morning show Good Morning America.

The series originally premiered on September 10, 2018, as GMA Day. Hosted by Michael Strahan and Sara Haines, it replaced The Chew (which had in turn, replaced ABC's soap opera All My Children) on ABC's daytime lineup. In late January 2019, the program was rebranded as GMA3: Strahan & Sara (or simply Strahan & Sara) to place a larger emphasis on its hosts. After filling in for Haines while she was on maternity leave, former Nickelodeon actress Keke Palmer joined the program full-time in August 2019, and it was renamed accordingly to Strahan, Sara & Keke.

On March 17, 2020, Strahan, Sara & Keke was suspended due to the onset of the COVID-19 pandemic in the United States, with ABC replacing it with Pandemic: What You Need to Know—a newscast produced by ABC News Live to cover topics relating to the pandemic, and anchored by Amy Robach. Although it was originally billed as a temporary replacement for Strahan, Sara & Keke, the What You Need to Know format quietly became permanent, with the Pandemic branding replaced by GMA3 in June, and T. J. Holmes added as a co-anchor in September.