Martin Kranz (born 28 November 2002) is a Liechtensteiner bobsledder.
Kranz has competed in the IBSF World Championships two-man bobsledding between 2020 and 2024. He is represented Liechtenstein at the 2026 Winter Olympics as a bobsledding pilot, and was also the country's flagbearer during the opening ceremony.
He is from Vaduz.