Astrospeakers is an online database of presenters who can deliver lectures and talks to organisations including astronomical societies, astronomy clubs, schools and special interest groups.
Presenters range from those studying in a field of astrophysics or astronomy to enthusiastic club speakers up to top-level Professors and Doctors.
Whilst many lecturers come from an academic background, many are perfectly comfortable giving talks that are suitable for novices and beginners.
If you are an astronomy lecturer or are someone that can host public stargazing events, you can register your details for free on their website.
If you are looking for someone to help host an event by giving a talk or presentation, check their database!