Tayna Simulation Three was a holoprogram created on the holodeck of the USS Enterprise-D based on Tayna's deposition concerning the events leading to the explosion of the Tanuga IV research station and the death of Dr. Nel Apgar. This program showed Commander William T. Riker and Manua Apgar about to have an affair when Nel came in and attacked Riker.

The program was followed by Tayna Simulation Four. (TNG: "A Matter of Perspective")