The name "Myzyn" has a nickname origin and likely comes from the dialectal word "myzyn," meaning 'pinky finger.' It was first mentioned in 1649 in records that document individuals such as the Cossack of the Kalnytskyi Regiment named Myzyn Kostiuchenko, the Cossack of the Uman Regiment Myzyn Voloshyn, as well as Cossacks of the Korsun Regiment Myzyn Mazynechenko and Myzyn Brytnenko. The name "Myzyn" also appears among surnames from the 17th century, for example, the Cossack of the Cherkasy Regiment Vasyl Myzyn in 1649 and the Cossack of the Korsun Regiment Danylo Myzyn. For more detailed information about the primary variant of the name Myzin and its derivative "Myzinec," see below.
