Úlfr Uggason (Modern Icelandic: Úlfur Uggason [ˈulvʏr ˈʏkːaˌsɔːn]) was an Icelandic skald who lived in the last part of the tenth century.
The Laxdæla saga tells how he composed his Húsdrápa for a wedding.
Geirmundr married Þuríðr, whose father, Óláfr pái ("peacock") Höskuldsson, had a magnificent hall built in his farm in Hjarðarholt (Iceland), with paintings representing legends on the walls and ceiling: Three myths are described in the twelve stanzas and half-stanzas of Úlfr's Húsdrápa: Baldr's funeral, Thor fishing for Jörmungandr, the Midgard serpent, and Heimdall's fight with Loki for the Brísingamen.
In chapter 60, on the occasion of a suit (which he loses), he is challenged to a duel by Gunnar of Hlíðarendi.
In chapter 102, the skald Þorvaldr veili, who has gathered a troop to slay Þangbrandr (a missionary sent to Iceland by Óláfr Tryggvason) and his companion Guðleifr Arason, asks him to kill the priest, but Úlfr refuses to be involved.