TDs have held a minute of silence in memory of the victims of racism.
The Dáil stood still after Ceann Comhairle, Seán Ó Fearghaíl, said it would be appropriate for politicians to show solidarity.
The public support from politicians comes amid global uprising against the actions of US authorities to tackle the protests against the killing of George Floyd.
Meanwhile, a plan for a second protest in Dublin this weekend has been cancelled after social distancing fears were raised.
The Ceann Comhairle said: “Yesterday, the Business Committee, on foot of a proposal from the Minister for Culture, Heritage and the Gaeltacht, Deputy Josepha Madigan, decided we should have a further minute's silence today as a demonstration of our abhorrence and rejection of racism and as an indication of our solidarity with and respect for all those people internationally who have died on foot of vile racist attacks.”
Minister for Health, Simon Harris, called on organisers of protests here to reconsider their planned march for this weekend, which they have now done.
Hundreds congregated outside the US Embassy in Ballsbridge last weekend, but there were criticisms that social distancing was organised at the protest.
Mr Harris said that racism makes him “sick to the stomach,” but he added: “it doesn’t mean we can ignore mass gathering guidelines, the reality is regardless of your cause or how just your cause is large gatherings are dangerous.
“We have to be careful, just because we support a cause doesn’t mean we have to be silent on a protest that did clearly breach guidelines.”
The planners of this weekend’s Black Lives Matter protest confirmed the cancellation.
"We ask that people do not attend any protests in their own interests. We will share details of an alternative digital action," the organisers said on Twitter.
"An Garda Siochana have not threatened or in any way attempted to intimidate the organisers, however, a number of safety concerns and potential criminal offenses surrounding the protest were raised and we have elected to cancel with the possibility of rescheduling.”
