John Eric Braun (born January 16, 1967) is an American politician from Washington. A Republican, Braun is in the Washington State Senate, representing the 20th legislative district.

John Braun was born on January 16, 1967, in Columbus, Ohio. He grew up in Ohio and attended the University of Washington on a U.S. Naval ROTC scholarship. He graduated in 1989 with a Bachelor's degree in electrical engineering. He then served seven years on active duty with the United States Navy.

Following active service with the Navy, Braun earned his Master of Business Administration degree and Master of Science in engineering management from the University of Michigan in 1999.

Braun serves as president of Braun Northwest, a family-owned emergency vehicle manufacturer founded in 1986, which serves emergency response agencies across the western United States.

In 2012, Braun ran in a three-way all-Republican primary versus the incumbent state senator Dan Swecker and employment specialist and former substitute teacher Rae Lowery. Braun had a strong showing in the primary with 40.33 percent of the vote compared to Swecker's 46.97 percent. In the general election, Braun greatly improved on his primary showing; defeating Swecker with 55.43 percent of the vote.

Braun was a member of the Senate Ways and Means Committee.

In November 2020, Braun was elected Washington Senate Minority Leader by members of the Republican caucus. Braun has served as the minority leader since the start of the 2021–2022 legislative session.

In August 2025, Braun announced that he would be running for U.S. House in Washington's 3rd congressional district in 2026.