There have been many atheists who have been active in advocacy or education.
This is a list of atheist activists and educators.
Living persons in this list are people whose atheism is relevant to their notable activities or public life, and who have publicly identified themselves as atheists.
People who are/were activists or educators in other areas (social reform, feminism etc), but who were also atheists.
^ a: A person permanently dependent upon a mechanical ventilator to maintain breathing.