| Letnica | |
| Settlement Type: | District of Gdańsk |
| Coordinates: | 54.39°N 18.6403°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Poland |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Pomeranian |
| Subdivision Type2: | County/City |
| Subdivision Name2: | Gdańsk |
| Established Title2: | Within city limits |
| Established Date2: | 1914 |
| Area Total Km2: | 3.89 |
| Population Total: | 1,462 |
| Population As Of: | 2019[1] |
| Population Density Km2: | auto |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Registration Plate: | GD |
Letnica (Kashubian: Latnica;) is an industrial district of the city of Gdańsk in northern Poland. It lies in the northern part of the city, and contains the Municipal Stadium, the city's largest football venue hosting several Euro 2012 games.