United States Senate election in North Dakota, 1970

The 1970 U.S. Senate election for the state of North Dakota was held November 3, 1970. The incumbent, North Dakota Democratic NPL Party Senator Quentin Burdick, was re-elected to his third term, defeating Republican candidate Thomas S. Kleppe, who later became the United States Secretary of the Interior.

Only Burdick filed as a Dem-NPLer, and the endorsed Republican candidate was Thomas S. Kleppe, who was finishing his second and final term as a Representative for North Dakota's second congressional district. Burdick and Kleppe won the primary elections for their respective parties.

One independent candidate, Russell Kleppe, also filed before the deadline.