The Blue Long Sword refers to Kirito's unnamed secondary sword in ALfheim Online. The sword was wielded along with Kirito's unnamed black long sword during the events of Calibur. It was later replaced by the «Holy Sword Excalibur».
- Kirito's blue sword was the original second sword used for Kirito's Skill Connect.
- A sword named Divination that is similar to Kirito's unnamed blue sword appears in Lost Song.