Gigas Olives This page first published: Aug 2, 2004 · Updated: Jun 8, 2018 · by CooksInfo. Copyright © 2021 · This web site may contain affiliate links · This web site generates income via ads · Information on this site is copyrighted. Taking whole pages for your website is theft and will be DCMA'd. See re-use information. Gigas are large, Greek table olives that are harvested when purple. Language Notes “Gigas” in Greek means gigantic.