Georgios Kaminis is a Greek American politician and professor of constitutional law. He was the Greek Ombudsman from April 2003 until September 2010 and Mayor of Athens from 2011 until 2019.

An ombudsman, ombud, ombuds, bud, ombudswoman, ombudsperson or public advocate is a government employee who investigates and tries to resolve complaints, usually through recommendations or mediation. They are usually appointed by the government or by parliament.