| Official Name: | Oberwinterthur |
| Native Name: | District of the city of Winterthur |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Switzerland |
| Subdivision Type1: | Canton |
| Subdivision Name1: | Zürich |
| Subdivision Type2: | City |
| Subdivision Name2: | Winterthur |
| Area Total Km2: | 17.40 |
| Population As Of: | 31. Dec. 2012 |
| Population Total: | 21748 |
| Blank Name: | District number |
| Blank Info: | 2 |
| Blank1 Name: | Quarters |
| Blank1 Info: | Talacker Guggenbühl Zinzikon Reutlingen Stadel Grüze Hegmatten Hegi |
Oberwinterthur is a district in the Swiss city of Winterthur. It is district number 2.
The district comprises the quarters Talacker, Guggenbühl, Zinzikon, Reutlingen, Stadel, Grüze, Hegmatten and Hegi.
Oberwinterthur was formerly a municipality of its own, but was incorporated into Winterthur in 1922, and the location of the Roman Vicus Vitudurum.
Oberwinterthur railway station is a stop of the Zürich S-Bahn on the lines S8, S29 and S30.