| Lancaster City Museum | |
|---|---|
 The museum, seen across Market Square | |
  Location within Lancaster city centre | |
| Former names | Old Town Hall |
| General information | |
| Type | Museum |
| Town or city | Lancaster, Lancashire |
| Country | England |
| Coordinates | 54°02′56″N 2°48′06″W / 54.0489°N 2.8017°W |
| Construction started | 1781 |
| Completed | 1783 |
| Opened | (as Lancaster City Museum) 1923 |
| Technical details | |
| Material | Sandstone ashlar with slate roof |
| Floor count | 3 |
| Design and construction | |
| Architect(s) | Major Thomas Jarrett |
| Main contractor | Robert Charnley and Robert Dickinson |
| Website | |
| www | |
Listed Building – Grade II* | |
| Official name | City Museum, The Old Town Hall |
| Designated | 22 December 1953 |
| Reference no. | 1194971 |
Lancaster City Museum is a museum in Lancaster, Lancashire, England. It is housed in the former Lancaster Town Hall building in Market Square.