Jewish groups have noted a steady uptick in anti-Semitism in the country, with some polls suggesting more than 60 percent of Hungarians hold disapproving opinions of Jewish people.
The WJC decided to hold its meeting in Budapest, rather than in Jerusalem, as it traditionally has, to show solidarity with Hungarian Jews, the news network RT said Saturday.
Incidents of violence have been noted against Jewish shops during the last several months and a leading rabbi was assaulted, RT said.
The rally was organized by the far-right Jobbik party, the third-leading party in Hungary's parliament.
Of the 10 million people living in Hungary, between 50,000 and 100,000 are Jewish, RT said, making it one of the larger Jewish communities in Europe.