| Finnish: Länsi-Herttoniemi | |
| Other Name: | Swedish: Västra Hertonäs |
| Settlement Type: | Helsinki Subdivision |
| Subdivision Type: | Country |
| Subdivision Name: |  Finland |
| Subdivision Type1: | Region |
| Subdivision Name1: | Uusimaa |
| Subdivision Type2: | Sub-region |
| Subdivision Name2: | Greater Helsinki |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Helsinki |
| Subdivision Type4: | District |
| Subdivision Name4: | Southeastern |
| Parts Type: | Subdivision regions |
| Parts Style: | para |
| P1: | is a quarter of the Herttoniemi neighbourhood |
| Total Type: | |
| Area Total Km2: | 2,73 |
| Population Total: | 8 076 |
| Population As Of: | 2008 |
| Population Density Km2: | 2 958 |
| Postal Code Type: | Postal codes |
| Postal Code: | 00800 |
| Blank Name Sec1: | Subdivision number |
| Blank Info Sec1: | 431 |
| Blank1 Name Sec1: | Neighbouring subdivisions |
| Blank1 Info Sec1: | Kulosaari, Viikinranta, Myllypuro, Roihupellon teollisuusalue, Herttoniemen teollisuusalue, Herttoniemenranta |
Länsi-Herttoniemi (Finnish), Västra Hertonäs (Swedish) is a southeastern neighbourhood of Helsinki, Finland. It is one of the subdivisions of the wider Herttoniemi suburb.