The name Rudyk originates from the Ukrainian adjective "rudiy," which means "red-haired." It was first recorded in 1620 in the village of Labun (VKO 377). Soon, it began to be used as a surname. For example, in 1649, the Cossack of the Korsun Regiment, Svyak Rudyk (RVZ 149), and the Cossack of the Poltava Regiment, Semen Rudyk (RVZ 415), are mentioned. In 1750, the daughter of Maria Rudyk from the town of Mykhailivka is referenced (Hadzeha Uzh 75). There are also patronymic formations derived from the name Rudyk, such as the surname of the Cossack of the Bila Tserkva Regiment, Pavlo Rudichenko (RVZ 375), and the surnames of the Cossacks of the Korsun Regiment, Hrytsko Rudenkо (RVZ 133).
