| Firthside | |
| Coordinates: | -42.9658°N 147.3078°W |
| Alternative Location Map: | Australia Hobart |
| Local Map: | yes |
| Zoom: | 12 |
| State: | tas |
| Type: | suburb |
| Lga: | Kingborough Council |
| City: | Hobart |
| Postcode: | 7053 |
| Fedgov: | Franklin, Denison |
| Near-E: | Bonnet Hill |
| Near-S: | Kingston |
| Near-Se: | Kingston Beach |
Firthside is a neighbourhood within the suburb of Kingston, in the greater Hobart area, capital of Tasmania, Australia. It is located on the northern edge of the Kingston urban area.
The Firthside area was originally settled by Dutch migrants.