Mercurius of Slavonia

Mercurius
Ban of Slavonia
Reign1205–1206
PredecessorIpoch Bogátradvány
SuccessorCsépán Ják
Diedafter 1206
Noble familyJanur kinship
Spouse(s)Princess Margaret
IssueJanur

Mercurius (Hungarian: Merkúr; died after 1206) was a Moravian lord in the early 13th century, who settled down in the Kingdom of Hungary. As a confidant of King Andrew II of Hungary, he served as Ban of Slavonia from 1205 to 1206. He became related to the royal Árpád dynasty through his marriage.