what to we call a person who presents in a training workshop?
The person who presents a training workshop is often called the "presenter."
Sometimes this person is the "workshop leader."
The term depends in part on what kind of workshop:
Is it a one-person speaker teaching one particular topic?
> The sales rep holds a workshop to teach the employees how to use the new equipment.
> A government employee outlines the new waste disposal regulations
This person is the "speaker, instructor, leader, presenter."
Or is it a workshop where everyone participates and gives their views?
> How do the employees feel about the changes that the new ownership is making?
> What should we do to solve the daily arguments over the limited parking spaces?
The person in charge of a group like this may be called the facilitator, leader, coordinator
A facilitator is a person who guides a group discussion