A strict sense
The dominant philosophical movement in Germany from roughly 1870 until the First World War. (SEP)
graph TD K[Kuno Fischer] --> F[Gottlob Frege] F --> C[Rudolf Carnap] R[Heinrich Rickert] --> B[Bruno Bauch] B --> C W[Wm Windelband] R --> H[Martin Heidegger] HC[Hermann Cohen] --> EC[Ernst Cassirer] N[Paul Natorp] --> EC
A weaker sense
Rorty uses the term neokantian to assimilate all philosophers who share Kant’s attitude of the Relation of philosophy to other disciplines.