Irish religious leaders warned of rising intolerance at an "unprecedented" gathering of senior Jewish, Christian and Muslim representatives.
Papal delegate Archbishop Charles Brown and imams from four mosques were among guests at the Jewish Representative Council of Ireland dinner, held at Dublin's Terenure synagogue hall.
JRCI chair Maurice Cohen said their presence reflected a "genuine desire to deepen the understanding" between religions. But a "shift of thinking in Ireland" was necessary to combat increasing levels of discrimination.
"We have seen the rise of antisemitism throughout Europe.
"In its wake, we have a rise in Islamophobia."