The D'jalnasian Institute is a public research university located in D'jalnas, a city which is part of the Southern Duchy in the Esmeraldan Empire.

The institute was established in 4975 by the Royal Court and it's first benefactor, Prefect Guillaume Bayeux. It is the oldest institution of higher learning in the Esmeraldan Empire. The D'jalnasian Institute's history, influence, and wealth have made it one of the most prestigious schools in the Empire.