Ada Fighiera-Sikorska or Ada Sikorska (January 26, 1929 – August 7, 1996) was a Polish Esperantist.
She edited the leading newspaper in Esperanto for thirty years.
A was a member of the World Association of Esperanto Journalists (TEJA), the Union of Esperanto Speakers Writers (EVA), the Esperanto PEN Club and an honorary member of the World Esperanto Association (UEA).