 Östergötland Runic Inscription 64 or Ög 64 is the Rundata designation for a granite runestone that is 3.2 meters in height and which was originally found in the wall of the Bjälbo church.Before the historic significance of runestones was understood, they were often re-used as materials in the construction of roads, bridges, and buildings such as churches.The stone was removed from the wall, repaired, and raised in the churchyard in 1935 along with Ög 66.