Martin township
- County:
- Smith County
- County Seat:
- No
- Area (mi²):
- 35.682
- State:
- Kansas
Martin township is located in Smith County, Kansas. Martin township has a 2026 population of 21. Martin township is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 21 in 2020.