Didrik Möllerum

File:Möllerum Martin Luther.jpg by Didrik Möllerum, from Kyrkpressen No 4]]

Didrik Möllerum, also Diedrich Möllerum, (1642 – {{circa|1702}}) was a Finnish painter.

Möllerum may have been born in Denmark, then later moved to Turku. He initially studied as an apprentice under the painter Jochim Neiman. He primarily painted religious-themed works and altarpieces for church commissions. One of his early documented jobs was restoration work for the Turku Cathedral after a fire in 1681. He is also known to have done some painting for the church in Raahe (1691), and the pulpit and altarpiece painting for the church in Tornio (1701).{{cite web|url=http://www.nikkemedia.fi/Ivailu/nettikurssit/taidehistoria1/suurvalta-ajan%20maalaustaide.html|title=House of Vasa Art History Timeline (Finnish)|accessdate=2013-04-02|url-status=dead|archiveurl=https://web.archive.org/web/20160304200526/http://www.nikkemedia.fi/Ivailu/nettikurssit/taidehistoria1/suurvalta-ajan%20maalaustaide.html|archivedate=2016-03-04}} Möllerum also painted portraits of some of the church vicars. Much of his time was spent working and living in Ostrobothnia and Tornio.