Guðlaugur is an Icelandic masculine given name. Notable people with the name include:
Guðlaugur Friðþórsson (born 1961), Icelandic fisherman and disaster survivor Guðlaugur Kristinn Óttarsson (born 1954), Icelandic musician Guðlaugur Victor Pálsson (born 1991), Icelandic footballer Guðlaugur Þór Þórðarson (born 1967), Icelandic politician