Yannick Wilhelmi (born 12 October 2000) is a Swiss professional squash player. He reached a career high ranking of 50 in the world during December 2024.
In December 2023, Wilhelmi won a bronze medal with Switzerland, at the 2023 Men's World Team Squash Championships in New Zealand.
After a first round exit from the 2024 PSA Men's World Squash Championship in May, he won another bronze medal with Switzerland, at the December 2024 Men's World Team Squash Championships in Hong Kong.