Bogislaw IV (c. 1255 – 19 or 24 February 1309), of the House of Griffin, was Duke of Pomerania from 1278 until his death in 1309.

Bogislaw was the eldest son of Duke Barnim I by his second wife, Margaretha, sometimes said to be a daughter of King Eric X of Sweden.

His half-brothers Barnim II and Otto I were still very young and so he was sole ruler in Pomerania during their minority.

[2] At some point before 14 December 1278, he married Mechtild, daughter of John I and a sister of reigning Margrave Otto IV.

However, all of his known children were by a second marriage to Margarethe, daughter of Wizlaw II, Prince of Rügen.