| Country: | England |
| Coordinates: | 53.3604°N -0.0131°W |
| Map Type: | Lincolnshire |
| Official Name: | St Mary's[1] |
| Static Image: | Hubbards Hills - geograph.org.uk - 2473352.jpg |
| Static Image Caption: | Hubbards Hills, Louth |
| Population: | 2,335 |
| Population Ref: | (2021 Ward Profile)[2] |
| Shire District: | East Lindsey |
| Lieutenancy England: | Lincolnshire |
| Region: | East Midlands |
| Constituency Westminster: | Louth and Horncastle |
| Civil Parish: | Louth |
| Post Town: | Louth |
| Postcode District: | LN11 |
| Postcode Area: | LN |
| Dial Code: | 01507 |
St Mary's is a suburb[3] and ward[4] of Louth in the East Lindsey district of Lincolnshire, England. It covers the southwestern part of the town and had a population of 2,335 at the 2021 UK Census.
The ward is close to the bottom of the Hubbards Hills and is located near both the Louth Bypass[5] and the road to Horncastle.[6] Also nearby was the former Louth - Bardney Line which ran under Horncastle Road on the opposite side of the Louth Bypass and Hubbards Hills.[7]