Cardinia Transit was a bus and coach operator in Melbourne, Australia.

A subsidiary of Grenda Corporation, it was purchased by Ventura Bus Lines in January 2012.

[1] It was included in the sale of Grenda Corporation to Ventura Bus Lines in November 2011 and the brand was retired.

[4] Initially Cardinia Transit adopted the cream with red stripes of Grenda's Bus Services.

It has since adopted the standard white with red and yellow flashes of Grenda Corporation.