Greece as the home of Atlantis was unknown until the end of the 19th and 20th when the Minoan Hypothesis evolved and is still one of the more popular theories today. Other locations in the Aegean have been proposed by researchers such as Paulino Zamarro and C.A. Djonis as well as three Italian linguists, Facchetti, Negri and Notti, who presented a paper(a) to the 2005 Atlantis Conference outlining their reasons for supporting an Aegean backdrop to the Atlantis story.
Mainland Greece has also been proposed as home to Atlantis. In the middle of the 20th century R.L. Scranton suggested Lake Copaïs in Boeotia, an idea later modified by Oliver D. Smith, who later abandoned the idea completely. More recently, it has been proposed that Atlantis was just an allegory of Athens and that its port, ancient Piraeus, was partly the inspiration behind Plato’s description of Atlantis(b).
(b) http://erenow.com/ancient/lordsoftheseaatheniannavy/20.html (see last paragraphs)