| Długa Kościelna | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Masovian |
| Subdivision Type2: | County |
| Subdivision Name2: | Mińsk |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Halinów |
| Coordinates: | 52.2333°N 42°W |
| Pushpin Map: | Poland |
| Pushpin Label Position: | bottom |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Population Total: | 723 |
| Registration Plate: | WM |
Długa Kościelna is a village in the administrative district of Gmina Halinów, within Mińsk County, Masovian Voivodeship, in east-central Poland.[1] It borders the town of Halinów in the south and lies approximately 160NaN0 west of Mińsk Mazowiecki and 240NaN0 east of Warsaw.
There are two churches and parishes in the village: the Catholic Saint Anne church and the Catholic Mariavite Blessed Sacrament church.