| Duque de Caxias | |
| Settlement Type: | Bairro |
| Mapsize: | 250px |
| Image Map1: | distrito.Sede.Santa Maria.RS.v2006.png |
| Mapsize1: | 250px |
| Map Caption1: | District of Sede, in Santa Maria City, Rio Grande do Sul, Brazil |
| Coordinates: | -29.7044°N -53.8213°W |
| Subdivision Type: | Country |
| Subdivision Name: | Brazil |
| Subdivision Type1: | State |
| Subdivision Name1: | Rio Grande do Sul |
| Subdivision Type2: | Municipality/City |
| Subdivision Name2: | Santa Maria |
| Subdivision Type3: | District |
| Subdivision Name3: | District of Sede |
| Area Total Km2: | 0.6062 |
| Area Total Sq Mi: | 0.2341 |
| Population Footnotes: | [1] |
| Population Total: | 3339 |
| Population Density Km2: | auto |
| Population Density Sq Mi: | auto |
| Postal Code: | 97.070-000 to 97.070-809 |
| Blank1 Name Sec1: | Adjacent bairros |
| Blank1 Info Sec1: | Nossa Senhora de Fátima, Nossa Senhora Medianeira, Patronato, Uglione, Urlândia. |
| Website: | Official site of Santa Maria |
Duque de Caxias[2] ("Luís Alves de Lima e Silva, Duke of Caxias") is a bairro in the District of Sede in the municipality of Santa Maria, in the Brazilian state of Rio Grande do Sul. It is located in centre-west Santa Maria.
The bairro contains the following villages: Duque de Caxias, Parque Residencial Duque de Caxias, Vila Lameira, Vila Moreira, Vila Plátano.