A Wraith dagger is a melee weapon used by the Wraith.
History[]
2008[]
In 2008, Sefaris, a Balarian Hoffan plague survivor, brought the Wraith to Dr. Carson Beckett in an attempt to trade Beckett's life for his own. However, the Wraith Commander stated that given his condition, keeping him alive was too risky. The Wraith pointed a dagger at Sefaris. (SGA: "Outsiders")
Alternate timelines[]

In an alternate timeline, where Michael Kenmore took over the Pegasus galaxy, Todd used one against Michael's hybrids and almost used it against Ronon Dex out of habit, while the two worked together to destroy one of Michael's labs. (SGA: "The Last Man")