The United States Senate elections of 1923 were special elections that occurred in the near the end of Republican President Warren G. Harding's term.

The Farmer-Labor party gained one seat from Republicans who kept the other seat and their majority.

At the beginning of the 68th Congress in March 1923.

In these special elections, the winners were seated after March 4, 1923.

Knute Nelson Republican Magnus Johnson Farmer–Labor William P. Dillingham (Deceased) Republican Porter H. Dale Republican