| Official Name: | Lakmartin |
| Settlement Type: | Village |
| Pushpin Map: | Croatia Krk#Croatia |
| Coordinates: | 45.0527°N 14.5888°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Croatia |
| Subdivision Type1: | County |
| Subdivision Name1: | Primorje-Gorski Kotar |
| Subdivision Type2: | Town |
| Subdivision Name2: | Krk |
| Area Footnotes: | [1] |
| Area Total Km2: | 10.1 |
| Population As Of: | 2021 |
| Population Total: | 32 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Timezone Dst: | CEST |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
Lakmartin is a village on the Croatian island of Krk, just to the west of Muraj and Kornić. Administratively, it is part of the town of Krk. As of 2021, it had 32 inhabitants. A chapel dedicated to St. Anthony of Padua (Croatian: Crkva sv. Antun Padovanski) is located in Lakmartin.