Bradley Zaun (R-Urbandale) is an Iowa politician who represented the 22nd District, as well as serving the Iowa Senate President pro tempore. He was the Republican nominee for Iowa's 3rd congressional district in the 2010 general election.

Zaun served in the Iowa Senate from 2005 until 2025. He is the former mayor of Urbandale, serving from 1998 to 2005 and a former city council member of Urbandale, serving from 1996 to 1998. He is former owner of Zaun's Hardware and Vice President of R&R Realty Marketing Group, and received his Bachelor's degree from Grand View College.

Zaun served on several committees in the Iowa Senate – the Judiciary committee; the Labor and Business Relations committee; the Rules and Administration committee; the Transportation committee; and the Ways and Means committee, where he was the ranking member. He also served on the Justice Systems Appropriations committee.

In January 2017, Zaun proposed a bill to end tenure in public universities in Iowa.

Zaun won the race for Iowa's 32nd Senate District.

Zaun was reelected to Iowa's 32nd Senate District, wiinning with 23,190 votes and running unopposed.

In the 3rd District Republican primary, he won with 42% of the vote in a crowded seven-candidate field to face the district's Democratic incumbent, Leonard Boswell.

Zaun ran in Iowa's 20th Senate District and was re-elected.