Khawaja has called out double standards in responses to anti-Semitic and Islamophobic attacks after two Muslim women were assaulted in separate incidents at an Epping shopping centre, in Melbourne's north, on Thursday.
An unidentified woman allegedly assaulted a 30-year-old woman inside the shopping complex before she pushed a 26-year-old woman to the floor in a separate incident about 10 minutes later.
The outspoken cricketer has previously waded into the Israel-Gaza conflict, having been denied requests to wear messages of support for Palestinian victims and logos of a black dove holding an olive branch.
The "atrocious" attacks will be "swept under the rug like all attacks against the Islamic community", Khawaja said in an Instagram post.
"Prime Minister and definitely not the Opposition leader will mention it. It's amazing how 1 sided the (world) is," he said.
"Rather than have an exclusive anti-Semitic summit, how about we stop picking sides and include islamaphobia 2 the register n give it the weight it deserves," he said.
When asked for a comment on the attacks following his prompt responses to a spate of anti-Semitic incidents, Prime Minister Anthony Albanese's office pointed to a statement released by federal assistant minister for multicultural affairs Julian Hill.
Mr Hill said the "appalling" attacks were another unacceptable example of rising Islamophobic incidents and attitudes, and Muslim Australians have every right to feel safe while going about their business in the community.
Opposition Leader Peter Dutton said the violence was unacceptable and a disgrace.
"It is even more egregious if the person is targeted because of their religion or appearance. It is a disgrace," Mr Dutton said in a statement.
"It is particularly disturbing to see reports that a pregnant woman was injured.
"I hope the offender is apprehended as quickly as possible and that the victims make a full recovery."
Home Affairs spokesman James Paterson also expressed his concern that two Muslim women were assaulted in a statement on X and called for the perpetrators to be brought to justice.
Victorian Premier Jacinta Allan condemned the "horrific" alleged attacks after prompting from the media, calling the Islamophobic attacks "evil hatred".
While the state opposition multicultural affairs spokesman Evan Mulholland condemned the "religiously motivated violence" on the two women in an area which is home to a large proportion of Victoria's Muslim community.
Australia's Special Envoy to combat Islamophobia Aftab Malik said the "disgusting" attacks on the women brought the hidden cancer of Islamophobia to the surface, urging the prime minister and other leaders to condemn the attacks.