Frédéric Rodriguez-Luz (born in Toulouse, France, in 1964), also known as Frédéric Luz, is a French writer and heraldist.
He is also the current pretender to the "throne" of the Kingdom of Araucanía and Patagonia, "an ephemeral 19th-century state." This has also been described as a "symbolic monarchy" primarily dedicated to international campaigning on behalf of the Mapuche people.