The Phlox Institute is a medical or scientific research facility named after Doctor Phlox of the Warp 5 Enterprise.

By 2379, Katherine Pulaski was performing research at the institute; the experiment was at a critial stage, and therefore she was only able to take enough time away to attend the wedding of William T. Riker and Deanna Troi on Earth and not their second ceremony on Betazed. (TNG novel: A Time for War, A Time for Peace)