| Mansion House, Newport | |
|---|---|
Plasty, Casnewydd | |
 The Mansion House – Newport's Register Office | |
 | |
| General information | |
| Type | Mansion |
| Architectural style | Victorian |
| Address | Stow Park Circle NP20 4HQ |
| Town or city | Newport |
| Country | Wales |
| Coordinates | 51°34′53.48″N 3°0′34.8″W / 51.5815222°N 3.009667°W |
| Current tenants | Newport Registry Office |
| Estimated completion | 1890 |
| Owner | Newport City Council |
| Other information | |
| Public transit access | Newport railway station |
| Website | |
| newport.gov.uk | |
The Mansion House is a property in Stow Park Circle in Newport, Wales. It was the official residence of the Mayor of Newport, South Wales until 2009 and has since become the local register office.