Reclaim Australia protesters will descend on Sydney's Martin Place on Sunday after similar rallies ended in violence in Melbourne.

The protesters will gather in Martin Place between Macquarie and Phillip Streets at 10.30am tomorrow protesting against what Reclaim Australia calls the "Islamisation of Australia".

Police are warning motorists, residents and visitors to the Sydney CBD of possible traffic disruptions.

There are no scheduled road closures; however, police may close nearby roadways if necessary, including sections of Phillip and Macquarie Streets.