Greater Dayton Regional Transit Authority
| Founded | 1972 |
|---|---|
| Headquarters | 4 South Main St, Dayton, Ohio |
| Service area | Montgomery County and Greene County, Ohio |
| Service type | bus service, trolleybus, express bus, paratransit |
| Routes | 18 |
| Stops | +2,500 |
| Hubs | Eastown Shopping Center Westown Shopping Center Northwest South (Dayton Mall) Wright Stop Plaza (Downtown Dayton) |
| Stations | Maintenance Facilities, 600 Longworth St, Dayton |
| Fleet | 260 |
| Daily ridership | 25,400 (weekdays, Q1 2025) |
| Annual ridership | 6,234,400 (2024) |
| Fuel type | Diesel, Electric and Hybrid |
| Operator | 350 |
| Website | i-riderta |
The Greater Dayton Regional Transit Authority, formerly known as the Miami Valley RTA, is a public transit agency that generally serves the greater Dayton, Ohio area. The GDRTA serves communities within Montgomery County and parts of Greene County, Ohio, USA. There are 18 routes. RTA operates diesel and electric trolley buses seven days a week, 21 hours a day, and provides services to many citizens within the area. RTA's current CEO is Bob Ruzinsky. In 2024, the system had a ridership of 6,234,400, or about 25,400 per weekday as of the first quarter of 2025.
Greater Dayton RTA is Ohio’s fourth-largest public transit system, serving Dayton and 23 surrounding communities in Montgomery County and parts of Greene County.