What are teachers of false doctrine called?

There isn't one single universally accepted term for teachers of false doctrine. The term used depends heavily on the religious context and the severity of the perceived falsehood. Some possibilities include:

* Heretics: This is a strong term, often implying a deliberate rejection of core tenets of a faith.

* False prophets: This term emphasizes the deception and misleading nature of their teachings, often associated with claims of divine authority.

* Schismatics: This refers to those who create divisions or separations within a religious community through their teachings.

* Sectarians: This describes those who belong to or promote a dissenting group or sect, often with differing beliefs.

* Apostates: This term describes those who renounce their faith or abandon core religious principles.

* False teachers: This is a more general term and doesn't necessarily carry the same weight as "heretic" but still implies the teaching of incorrect doctrine.

The specific term used will depend on the specific religion, denomination, and the nature of the "false doctrine" in question.