MetroBus is a public bus service operated by Metro Transit that serves the Greater St. Louis area.

MetroBus currently operates 59 fixed bus routes in a shared fare system with the MetroLink light rail service.

[8] In addition, ongoing labor shortages have reduced Metro's ability to offer comprehensive service to its riders.

However, recruitment remains low and Metro slashed the number of full-time bus driver slots in its 2024 budget by 21%, from 811 to 635.

[10] In 2024, after several successful hiring events, Metro increased frequency on 17 bus routes in Missouri as part of its January service adjustment.

[18] Residents called to jury duty in Metro's service area may travel on MetroBus free of charge.