Williams died last week at the age of 63 from an apparent suicide.
"We felt we needed to do something powerful and memorable. Billy seemed like the perfect choice," said Emmys producer Don Mischer, according to E! News.
This announcement comes after Mischer revealed last week that something for Williams was definitely in the works.
"Plans for the In Memoriam segment are in discussion," Mischer, told ABC News via a statement. "We are working to give Robin Williams the proper and meaningful remembrance he so well deserves."
Williams was no stranger to the Emmy Awards, having been nominated eight times and winning twice.
The 66th Primetime Emmy Awards are set to air Aug. 25 on NBC.