Dave's Picks Volume 15 is a three-CD live album by the rock band the Grateful Dead. It contains the complete concert recorded on April 22, 1978 at the Municipal Auditorium in Nashville, Tennessee. It was released on August 1, 2015 as a limited edition of 16,500 numbered copies.

One track from the previous concert of the tour ("Stella Blue"), in Lexington, Kentucky, on April 21, 1978, had been released on So Many Roads. The following concert date of the tour (April 24, 1978, Illinois State University) had been released as Dave's Picks Volume 7.

Stephen Thomas Erlewine, writing on AllMusic, said, "In his brief liner notes for his 15th pick, historian/vaultmaster Dave Lemieux claims April 24, 1978 as the dividing point between the tightly honed 1977 Dead and the looser 1978 Dead. That April 24 concert at Normal's Illinois State University saw release in 2013 as the seventh Dave's Pick, but this 2015 release captures a show at Nashville Municipal Auditorium from just two days earlier, so it follows that the Dead are in similarly fine form.... All and all, it's a really good, surprisingly energetic show."

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