Llawfrodedd Farfog or Llawfrodedd Farchog (Middle Welsh) is a hero of Welsh tradition. The meaning of the personal name Llawfrodedd is uncertain, the epithets Farfog (barfog) and Farchog (marchog) mean "bearded" and "horseman" respectively.
He is mentioned in Trioedd Ynys Prydein as the owner of one of the Three Prominent Cows of the Island of Britain, i.e. Cornillo ('little horn' perhaps). "The knife of Llawfrodedd, which would serve for twenty-four to eat at table" is named as one of the Thirteen Treasures of the Island of Britain.
Llawfrodedd is a hero of Arthur's court in the tales of Culhwch and Olwen and Breuddwyd Rhonabwy. Several examples of the word 'Llawfrodedd' are found in the work of the medieval Gogynfeirdd poets, but it is not clear if it occurs as a proper name.
The evidence suggests that Llawfrodedd may have been one of 'Men of the North', but this can not be proven.