| Martinšćica | |
| Other Name: | San Martino di Cherso |
| Settlement Type: | Village |
| Pushpin Map: | Croatia |
| Coordinates: | 44.8194°N 14.3516°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Croatia |
| Subdivision Type1: | County |
| Subdivision Name1: | Primorje-Gorski Kotar |
| Subdivision Type2: | Town |
| Subdivision Name2: | Cres |
| Area Footnotes: | [1] |
| Area Total Km2: | 10.0 |
| Population As Of: | 2021 |
| Population Total: | 103 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Timezone Dst: | CEST |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 51556 |
| Area Code: | 051 |
| Registration Plate: | RI |
Martinšćica (Italian: Italian: San Martino di Cherso, Italian: San Martino in Valle) is a coastal village on the Croatian island of Cres, in Primorje-Gorski Kotar. Administratively, it is part of the town of Cres. As of 2021, it had a population of 103. With a marina providing direct access to the Adriatic Sea, Martinšćica is a popular tourist destination with many tourist facilities.