orator
public speaker; for conference speaker use Q100742049
rhetorician
teacher of rhetoric; theorist of rhetoric
demagogue
politician or orator who panders to fears and emotions of the public
motivational speaker
speaker intended to motivate the audience
panegyrist
speaker delivering a public prayer of praise
preacher
person who delivers sermons or gives homilies
lecturer
knowledgeable person who gives informative talks, as opposed to ceremonial or persuasive
eulogist
orator in a funeral rite