Loddfaffni(r), is a character in the 9th Century Norse document the Havamal to whom the discourse on morals, ethics, and correct action is directed.

In anglicised form it is sometimes written Lodfaffni. It is translated as 'stray singer' and is not a reference to a dwarf but to a skald (poet) named as such. The name figures nowhere else in Norse Mythology and as such is likely a mythic personification of the court poets or skalds that would have collected and recited (or sung) the poem.