Over 100 people gathered to peacefully protest the Auckland Warkworth Rodeo on Monday.
The Direct Animal Action group was amongst the demonstrators, holding stop signs and calling on the government to ban the sport.
Spokesperson Apollo Taito says the movement is growing and rodeo has had its day in New Zealand.
"We had over 100 people join our protest today, which is a massive increase from previous years," said Mr Taito.
"The anti-rodeo movement is gaining momentum, with more people than ever participating in protests outside rodeos."
Mr Taito says public outcry against rodeos increases every year.
"New Zealanders have had enough of this animal cruelty for entertainment and they're willing to show this by turning up to a protest."
More rodeos are planned in Whangarei, Waikato, Christchurch and Wellington.