Othala (), also known as ēðel and odal, is a rune that represents the o and œ phonemes in the Elder Futhark and the Anglo-Saxon Futhorc writing systems respectively. Its name is derived from the reconstructed Proto-Germanic *ōþala- "heritage; inheritance, inherited estate". As it does not occur in Younger Futhark, it disappears from the Scandinavian record around the 8th century, however its usage continued in England into the 11th century.
As with other symbols used historically in Europe such as the swastika and Celtic cross, othala has been appropriated by far-right groups such as the Nazi party and neo-Nazis. The rune also continues to be used in non-racist contexts, both in Heathenry and in wider popular culture such as the works of J.R.R. Tolkien.
The sole attested name of the rune is ēþel, meaning "homeland". Based on this, and cognates in other Germanic languages such as óðal and ēthel, the *ōþalą can be reconstructed, meaning "ancestral land", "the land owned by one's kin", and by extension "property" or "inheritance". *ōþalą is in turn derived from *aþalą, meaning "nobility" and "disposition".
Terms derived from *ōþalą are formative elements in some Germanic names, notably Ulrich.
The term "odal" (óðal) refers to Scandinavian laws of inheritance which established land rights for families that had owned that parcel of land over a number of generations, restricting its sale to others. Among other aspects, this protected the inheritance rights of daughters against males from outside the immediate family. Some of these laws remain in effect today in Norway as the Odelsrett (allodial right). The tradition of Udal law found in Shetland, Orkney, and the Isle of Man, is from the same origin.
The o-rune is attested early, in inscriptions from the 3rd century, such as the Thorsberg chape (DR7) and the Vimose planer (Vimose-Høvelen, DR 206).
The corresponding Gothic letter is (derived from Greek Ω), which had the name oþal.