The state posted 28,128 new COVID-19 infections and another 13 deaths on Sunday, as hospitalisations with the virus continue to climb.
Premier Daniel Andrews announced the state has received its "significant first batch" of three million RATs, from a bulk order of 44 million.
They will be handed out to essential workers in health and aged care, disability and emergency services from Monday.
Victorians with pre-existing conditions that make them susceptible to severe illness will also be prioritised for a RAT, to ensure they are diagnosed quickly so that care can be provided as soon as possible.
"Three million is a very important start, we are working very hard to make sure that each and every one of the orders that make up the 44 million are honoured," Mr Andrews told reporters in Melbourne on Sunday.
The state handed out more than 400,000 free RATs to people at state testing sites last week.
Victoria's new infections include 10,337 reported from rapid antigen tests and 17,791 from PCR tests.
There are a record 1114 patients in hospital with COVID-19, 60 more than the 1054 reported on Saturday.
The number of people in ICU has grown by seven to 122 with 35 on ventilators, five more than the previous day.
The state is managing 237,559 active cases.
About 23 per cent of Victorians aged over 18 have received their booster vaccine.
The state government extended its rent relief program on Sunday for businesses struggling amid the latest wave.