Stephan Lars Andreas Brunner Neibig (born 28 February 1961) is a Costa Rican politician and economist who served as the first vice president of Costa Rica from 2022 to 2025. He assumed office on 8 May 2022.

Brunner earned a Bachelor of Arts degree in cultural economics from the University of Kiel, a Master of Arts in economics from Indiana University Bloomington, and a PhD in economics from the University of Kiel.

On 30 July, Brunner resigned alongside six other cabinet members in order to run in the 2026 Costa Rican general election.