Vehicles were reported stolen from outside residential addresses in Warragul and Longwarry on the weekend.
Police said a dark blue Toyota RAV4, with registration plates "1YN 2MB", was stolen from Montrose St, Warragul.
The theft occurred overnight on Friday.
On Sunday, a white Mazda Bravo utility, with registration plates "WEQ 916", was reported stolen in Kennedy St, Longwarry.
It is believed the theft occurred between 10.30am and 11.15am.
Police said the utility was involved in an attempted theft of copper wiring in Pakenham South later that day.