| Election Name: | 1930 United States Senate election in Iowa |
| Country: | Iowa |
| Flag Image: | Flag of Iowa (xrmap collection).svg |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1924 United States Senate election in Iowa |
| Previous Year: | 1924 |
| Next Election: | 1936 United States Senate election in Iowa |
| Next Year: | 1936 |
| Election Date: | November 4, 1930 |
| Nominee1: | L. J. Dickinson |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 307,613 |
| Percentage1: | 56.29% |
| Nominee2: | Daniel F. Steck |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 235,186 |
| Percentage2: | 43.03% |
| Map Size: | 250px |
| U.S. Senator | |
| Before Election: | Daniel F. Steck |
| Before Party: | Democratic Party (United States) |
| After Election: | Lester J. Dickinson |
| After Party: | Republican Party (United States) |
The 1930 United States Senate election in Iowa took place on November 4, 1930. Incumbent Democratic Senator Daniel F. Steck ran for re-election to a full term in office, but was defeated by U.S. Representative Lester J. Dickinson.
This was the only Senate seat Republicans gained in the 1930 elections.