Crowds rally against Baird in Sydney

Waving placards saying "Baird Out" and "Save Sydney from Baird's butchery", thousands have rallied outside Sydney's Town Hall to protest a swathe of policies introduced by NSW Premier Mike Baird.

The vocal crowd included opponents of the NSW council amalgamations, light rail development, nightspot lockout laws, anti-protest legislation and the WestConnex motorway project.

Ousted Leichhardt mayor Darcy Byrne told the rally that Mr Baird was "completely out of control".

"It's time to send him a message, take a stand and say that we will resist his rule," Mr Byrne said, to cheers and applause.

March Australia organiser in Sydney Sonia Zadro said the introduction this year of tougher anti-protest laws - including greater police powers and a tenfold increase in fines - was "the last straw".

"It just keeps getting worse and worse and it just seemed like the time has come for some serious dissent," Ms Zadro told AAP.

"All these issues, they seem disparate, but they're all connected, and they're all underpinned by corruption."

Anti CSG activist Dane Pratzy also addressed the crowd before ralliers marched on state parliament.