The Third Quartet is an album by guitarist John Abercrombie recorded in June 2006 and released on ECM the following year.

The quartet features violinist Mark Feldman and rhythm section Marc Johnson and Joey Baron.

[1] The AllMusic review by Thom Jurek awarded the album 4 stars, stating, "Third Quartet is the third album by this rather astonishing group of musicians under guitarist and composer John Abercrombie's leadership.

His collaborators: drummer Joey Baron, violinist Mark Feldman, and bassist Marc Johnson are all accomplished leaders in their own rights, but as they team with Abercrombie, something unusual, unwieldy, and utterly transformative takes place...

"[2] The Penguin Guide to Jazz awarded it four stars and a "Crown.