Mykhailo Krychevsky or Stanisław Krzyczewski or Krzeczowski (died 3 August 1649) was a Polish noble, military officer and Cossack commander. He fought for the Polish–Lithuanian Commonwealth against various Cossack revolts and Crimean Tatar factions. During his time as a Cossack commander, Krychevsky befriended Bohdan Khmelnytsky, who would go on to stage a revolt against the Polish-Lithuanian throne.