Eureka Township
- Aurora County, South Dakota
- Brookings County, South Dakota
- Eureka Township, Adair County, Iowa
- Eureka Township, Aurora County, South Dakota
- Eureka Township, Barton County, Kansas
- Eureka Township, Dakota County, Minnesota
- Eureka Township, Greenwood County, Kansas
- Eureka Township, Kingman County, Kansas
- Eureka Township, Michigan
- Eureka Township, Sac County, Iowa
- Eureka Township, Saline County, Kansas
- Eureka Township, Valley County, Nebraska
- Mitchell County, Kansas
- Rice County, Kansas
- Sac County, Iowa
- Ward County, North Dakota