Metroline
| Parent | ComfortDelGro |
|---|---|
| Founded | 1 April 1989 |
| Headquarters | Cricklewood |
| Service area | Berkshire Buckinghamshire Greater London Hertfordshire |
| Service type | Bus services |
| Routes | 115 |
| Hubs | North London North-west London West London |
| Depots | 13 |
| Fleet | 1,515 (March 2025) |
| Fuel type | Diesel, Electric, Hybrid and Hydrogen |
| Website | www |
Metroline is a bus operator operating primarily in Greater London and partially in Berkshire, Buckinghamshire and Hertfordshire. It is a subsidiary of ComfortDelGro and operates bus services for London Buses under contract to Transport for London. Operations are run under two registered companies, Metroline Travel Limited and Metroline West Limited.