2020 Iowa Question 1, the Iowa Constitutional Convention Question, was a ballot measure in Iowa held on November 3, 2020, to hold a constitutional convention to revise the Constitution of Iowa.

It was defeated with 70% of the vote against.

[1] The Iowa Constitution specifies that every ten years there should be a ballot measure asking if there should be a constitutional convention.

[2] The measure appeared on ballots as follows, as the Iowa Constitution requires: Shall there be a convention to revise the Constitution, and propose amendment or amendments to same?