WysockimPolish, Jewish Habitational name for someone from any of the various locations named Wysocko, Wysoka or Wysokie, all derived from Polish wysoki meaning "tall, high".
WyspiańskimPolish Derived from the Polish word wyspa meaning "island."
YezhovmRussian Derived from Russian word "ёж (yozh)" meaning hedgehog. Yezhov was the last name of Nikolay Yezhov, the leader of the Soviet NKVD from 1936-38 who is known for Yezhovshchina.
YmykovmYakut From Yakut ымыы (ymyy), meaning "crossbill (bird)".
YurovskiymRussian, Polish (Russified) Alternate transcription of Yurovsky. This was the last name of Yakov Yurovskiy, a notable Bolshevik. He led the execution of the Romanovs.
ZawadzkimPolish Habitational name for someone from a place named Zawada or a variant of the surname Zawada, both coming from Polish zawada meaning "hindrance".
ZiółkowskimPolish Habitational name for someone from any of various places called Ziółkowo or Ziółków, both derived from Polish ziółko meaning "herb" with a diminutive suffix.