| Port Sandwich | |
| Also Known As: | Lamap |
| Region: | Malekula |
| State: | Vanuatu |
| Speakers: | 1,200 |
| Date: | 2001 |
| Ref: | e18 |
| Familycolor: | Austronesian |
| Fam2: | Malayo-Polynesian |
| Fam3: | Oceanic |
| Fam4: | Southern Oceanic |
| Fam5: | North-Central Vanuatu |
| Fam6: | Central Vanuatu |
| Fam7: | Malakula |
| Fam8: | Malakula Coastal |
| Iso3: | psw |
| Glotto: | port1285 |
| Glottorefname: | Port Sandwich |
| Map: | Lang Status 99-NE.svg |
Port Sandwich, or Lamap, is an Oceanic language spoken in southeast Malekula, Vanuatu, on the eastern tip of the island. It was first described in 1979 by French linguist Jean-Michel Charpentier.[1]
Nisvai is a separate language.[2]