John Ludvig (August 2, 2000) is a Czech-Canadian professional ice hockey defenseman. He was drafted 69th overall by the Florida Panthers on June 22, 2019.
On July 17, 2023, he signed a two-year, two-way contract with the Florida Panthers. On October 9, 2023, he was claimed off waivers by the Pittsburgh Penguins.
He was claimed off waivers by the Colorado Avalanche on October 5, 2024.