| Opérateur de transport de Wallonie | |
| Parent: | Government of Wallonia |
| Founded: | 1991 |
| Headquarters: | Av. Gouverneur Bovesse, 96 5100 Jambes |
| Service Area: | Wallonia |
| Service Type: | bus service, tram, Metro, demand responsive transport |
| Website: | www.letec.be |
Opérateur de transport de Wallonie (OTW) (French for: Transport Operator of Wallonia), formerly Société régionale wallonne du transport (SRWT) (French for: Walloon Regional Transport Company), is responsible for the supervision, strategic planning and marketing of a group of five regional public transport directorate branded as TEC or "Transport En Commun" (French for: Public Transport) in Wallonia, Belgium. It is primarily a bus operator, but also operates the Charleroi tram system, and will operate the tramway in Liège once completed.[1] TEC buses and trams are distinctively painted yellow and red.
TEC was founded in 1991 through the breakup of the former Belgian NMVB/SNCV into separate companies for Wallonia and Flanders.
TEC sells the MOBIB smartcard branded "TEC it easy" and runs a chain of shops called Espace TEC.
In 2019, Société régionale wallonne du Transport (SRWT) became Opérateur de transport de Wallonie (OTW).