Green Party co-leader Marama Davidson was knocked to the ground by a motorcyclist who appeared to fail to stop at a pedestrian crossing after today's counter-protest against British anti-transgender activist Posie Parker.
In images published by other media, Davidson was seen waving a 'Trans Solidarity' sign just before she was struck.
In a statement Greens co-leader James Shaw said Davidson was seeing a doctor after the incident and has reported the incident to police.
Davidson attended today's rally to support trans and non-binary human rights and was injured by the motorcyclist after Parker left Albert Park under a police escort.
A large number of motorcyclists were in the area to support another rally held by Brian Tamaki.
Shaw said the news Davidson had been injured was upsetting and "we are asking people to show care and love".
"We ask everyone to give Marama and her whānau some space and time to process what has happened."
Shaw said the Green Party stood with its trans and non-binary whānau.
"Aotearoa should be a place where everyone can live their lives without fear of hate or discrimination."
A rainbow community leader says their thoughts are with Davidson.
Ahi Wi-Hongi, the executive director of Gender Minorities Aotearoa, believes the incident was deliberate.
"It's terrible. When you get a lot of people who are there to campaign against human rights, they don't tend to have a lot of respect for other people there.
"These sort of hate rallies attract the worst kind of extremists, and violece can be expected."