Imerius (Himerius, Imier, Immer) of Immertal (c. 570 – c. 620) was a monk, hermit, and missionary in the present Swiss Jura.
Imerius was born in Lugnez, a small village now in the Canton of Jura about 570.
He spent some time in Lausanne and made a voyage to Palestine.
After he had returned he lived in the valley of Saint-Imier as a hermit.
This biographical article about a Swiss religious figure is a stub.