Rostislav Mikhailovich (Hungarian: Rosztyiszláv,[1] Bulgarian and Ukrainian: Ростислав Михайлович) (after 1210[2] / c. 1225 – 1262)[3] was a Rurikid prince and a dignitary in the Kingdom of Hungary.

[1] He was prince of Novgorod (1230), of Halych (1236–1237, 1241–1242), of Lutsk (1240), and of Chernigov (1241–1242).

[1] He was the Ban of Slavonia (1247–1248), and later he became the first Duke of Macsó (after 1248–1262), and thus he governed the southern parts of the kingdom.

[1] In 1257, he occupied Vidin and thenceforward he styled himself Tsar of Bulgaria.

[4] In 1243, Rostislav married Anna of Hungary (c. 1226 – after 1274), daughter of King Béla IV of Hungary and his wife, Maria Laskarina.