| Longmen Township | |
| Native Name Lang: | zh-hans |
| Settlement Type: | Township |
| Pushpin Map: | Hebei |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location in Hebei |
| Coordinates: | 39.5914°N 115.2292°W |
| Subdivision Type: | Country |
| Subdivision Name: | People's Republic of China |
| Subdivision Type1: | Province |
| Subdivision Name1: | Hebei |
| Subdivision Type2: | Prefecture-level city |
| Subdivision Name2: | Baoding |
| Subdivision Type3: | County |
| Subdivision Name3: | Laishui |
| Subdivision Type4: | Village-level divisions |
| Subdivision Name4: | 20 villages |
| Unit Pref: | Metric |
| Elevation M: | 408 |
| Population Density Km2: | auto |
| Timezone1: | China Standard |
| Utc Offset1: | +8 |
| Postal Code Type: | Postal code |
| Area Code: | 0312 |
Longmen Township is a township of Laishui County in the foothills of the Taihang Mountains of western Hebei province, China,[1] located about northwest of the county seat., it has 20 villages under its administration.[2]