Places beginning with SI in North Dakota, United States
- Sibley
- Sibley Butte, Township of
- Sibley, City of
- Sibley, Township of
- Sibley Trail, Township of
- Sidney, Township of
- Sidonia, Township of
- Sikes, Township of
- Silva
- Silver Lake, Township of
- Silverleaf
- Silvesta, Township of
- Simcoe
- Sims
- Sinclair, Township of
- Sioux County
- Sioux, Township of
- Sioux Trail, Township of
- Six Mile Corner