Campaigns against Australian companies that make halal products are "little more than anti-Islamic bullying", according to Race Discrimination Commissioner Tim Soutphommasane.

In an address in Adelaide on Thursday evening, Dr Soutphommasane will call out recent campaigns against food businesses that have halal certification, including pie maker Four'N'Twenty, the Byron Bay Cookie Company and Fleurieu Milk Company.

Tim Soutphommasane says there has been a recent rise in anti-Muslim sentiment.

Fleurieu has recently ended its $50,000 yoghurt supply deal with Emirates after a social media campaign.

Posters on Facebook had suggested the fee the company paid to become halal certified was being used to fund terrorism. Sales manager Nick Hutchinson later said the company wanted to avoid negative publicity.