Protesters clashed amid a heavy police presence as dozens converged on Parliament House as part of Reclaim Australia rallies and counter-demonstrations across the country on Sunday.
More than 100 anti-racism supporters gathered outside Questacon in Parkes about 11am to oppose members of the right-wing group Stand Up Australia Canberra, formerly known as Reclaim Australia, who gathered on the other side of the National Library.
The counter-rally was organised by the Canberra Anti-Racism Network to show their opposition to the "racism and Islamaphobia" it said the group promoted.
Police were investigating a punch that was allegedly thrown against an anti-racism protester in a carpark after the rallies ended but no charges had been laid.
The capital's protest proved more subdued than a violent gathering in Melbourne on Saturday which saw officers deploy capsicum spray as counter-protesters breached police lines.
Five people were arrested as the two groups clashed in Sydney's Martin Place on Sunday.
Reclaim Australia also rallied in Adelaide on Saturday, and in Newcastle, Brisbane, Perth, Hobart and other regional centres on Sunday.
ACT Policing said before the Canberra rallies they expected both parties would be "vocal but peaceful".
The anti-racism protesters who gathered waved signs which read "Refugees are not Q jumpers" and "Stop racism, stop Islamophobia" and heard from speakers including Canberra human rights advocate and activist Diana Abdel-Rahman.
Canberra Anti-Racism Network activist Vishnupriya De said the group wanted to stand in solidarity with the Muslim community and other people who experienced racist abuse.
"Reclaim Australia are kidding themselves if they think people are going to sit by and let this bigotry go unopposed.
"The real threat to Australia is [Tony] Abbott and his austerity measures – not ordinary Muslim people or refugees".
The group loudly chanted "Muslims are welcome, racists are not" as they headed towards Commonwealth Avenue, where about 30 members of the local Reclaim Australia branch had gathered in a carpark.
They waved Australian and Eureka flags and blared songs including "Down Under" by Men at Work as police numbers were bolstered to handle the stand-off. They held up signs which read: "Islam is a hate group, not a religion."
Police lines separated the two groups as they confronted one another in the carpark before the right-wing group started to march towards Parliament House.
Restore Australia chief executive Mike Holt said the group's gathering was not about racism. He said members felt the country had "lost its way politically".
Sitting quietly amid the protest was Aboriginal Tent Embassy caretaker Roxley Foley, who held up a sign which read "Not yours to reclaim".
Mr Foley said he showed up at the rally to make the point "this isn't the extremists' country to reclaim".