- Longju Opera Theatre of Gansu Province
- Longkaikou Hydropower Station
- Longkanshoujing
- Longkou Dongjiawa Ancient Pagoda Tree
- Longkou Gang
- Longkou Museum
- Longkou Shi
- Longkou Wan
- long leg fly
- Longlian
- long life
- long life asphalt pavement
- longlife sustainable housing
- long lifetime
- Longli Guzhen
- Longlin De’e human remains
- long line
- longline fishing
- longline fishing vessel
- Longlin Gezu Zizhixian
- Longling Manggao Reshuitang Pubu
- Longling Xian
- Longlinian Stage
- long lived complex
- long-lived particle