Susan Lynn Brooks (née Wiant; born August 25, 1960) is an American prosecutor and politician. She is a Republican and the former U.S. Representative for Indiana's 5th congressional district. She was elected in 2012. The district includes the northern fifth of Indianapolis, as well as many of the city's affluent northern and eastern suburbs. Brooks served as the United States Attorney for the Southern District of Indiana from 2001 to 2007.
She was a candidate to replace Mike Pence in the 2016 Indiana gubernatorial election after he withdrew from the race to be Donald Trump's running mate in the 2016 U.S. presidential election. However, Indiana Republicans gave the nomination to Eric Holcomb, Indiana's lieutenant governor and Pence's second in command during his administration, who was then elected governor. In the 116th Congress, she was a co-chair of the House moderate Republican faction, the Tuesday Group, alongside John Katko and Fred Upton. She is also recruitment chair for the National Republican Congressional Committee.
On June 14, 2019, Brooks announced that she would not run for reelection to the U.S. House of Representatives in 2020.