Redlichiina is a suborder of the order Redlichiida of Trilobites.

The suborder contains three superfamilies: Emuelloidea, Redlichioidea and Paradoxidoidea.

They originated at the beginning of the Cambrian Period and disappeared (possibly by evolving into members of the Ptychopariida order) at the end of the middle Cambrian.

Early forms tend to have tapering, conical glabella with furrows extending far backwards while later forms with glabella expanding forwards to inflated frontal lobe.

Thorax: Fulcrate or non-fulcrate, typically with many segments (60+ in an Emmuelid).