Frederick I (German: Friedrich I.)
(1173–1198) was a count of Berg-Altena, the later County of Mark.
Frederick was the son of Eberhard I, Count of Berg-Altena, and inherited the south-eastern territory of Altena.
He married Alveradis von Krieckenbeck-Millendonk, daughter of Reiner von Krieckenbeck-Millendonk, and they had issue:
This article about a German count is a stub.