Westbus
| Parent | ComfortDelGro Cabcharge | 
|---|---|
| Founded | 1955 | 
| Ceased operation | October 2013 | 
| Service area | Western Sydney | 
| Service type | Bus services | 
| Depots | Bonnyrigg Girraween St Marys Windsor | 
| Website | westbus.com.au | 
Westbus was an Australian bus and coach operator that operated bus services in Western Sydney from 1955 until October 2013. Founded by the Bosnjak family, it later became a subsidiary of National Express and later ComfortDelGro Cabcharge (now known as ComfortDelGro Australia).