Tristrams saga ok Ísoddar is a medieval Icelandic romance saga.
Characteristics.
According to Marianne Kalinke and Paul Mitchell, "The saga deviated sharply in tone from its probable source, the Norwegian "Tristrams saga ok Ísöndar". Changes in names, the deletion of some episodes and the conflation or striking modification of others, and the inclusion of new material have radically altered the Tristan legend as known in the Thomas-branch".