White Croats (Croatian: Bijeli Hrvati, Polish: Biali Chorwaci, Czech: Bílí Chorvati, Ukrainian: Білі хорвати tr. Bili Khorvaty) were a group of Slavic tribes who lived among other West and East Slavic tribes in the area of Bohemia, Lesser Poland, Galicia (north of Carpathian Mountains) and Western Ukraine.
They were documented primarily by foreign medieval authors, and have managed to preserve their ethnic name to the early 20th century. In the 7th century, some White Croats migrated from their homeland White Croatia to the territory of modern-day Croatia.
It is generally considered that the name of Croats - Hrvat/Horvat/Harvat, etymologically is not of Slavic origin, but a borrowing from Iranian languages. It is considered that the ethnonym Hrvat is first attested on the two Tanais Tablets, found in the Greek colony of Tanais in the late 2nd and early 3rd century AD, at the time when the colony was surrounded by Iranian-speaking Sarmatians. The first Iranian tribes who lived on the shores of Sea of Azov were Scythians, who arrived there c. 7th century BCE. Around the 4th century BCE they withdrew before the incursions of Sarmatians. In that area occurred extensive Early Slavic and Iranian cultural and linguistical contacts.