Pavel Tsatsouline (born Aug. 23, 1969 in Minsk, USSR) is a fitness instructor from the former Soviet Union. He is involved with the evolving field of martial arts fitness and is a major proponent of the traditional Russian fitness tool, the kettlebell, as an exercise and strengthening tool. He is credited with popularizing the kettlebell in the United States.
He was voted a "Hot Trainer" by Rolling Stone in 2001.
Tsatsouline has published articles in Milo magazine and Performance Press.
Pavel's publisher is Dragon Door, owned by John Ducane. Dragon Door is a website and publishing company generally focused on martial arts and related sports, but also catering to general health, fitness, weight loss, and stress management.