Concerto Grosso in D Blues is an album by flautist Herbie Mann, an example of third stream, the genre merging jazz with classical music. It was recorded in 1968 and released on the Atlantic label.
AllMusic awarded the album 5 stars and its review by Richard Ginell states, "Not only is this rare LP one of Herbie Mann's own favorites, it is one of the most moving classical/jazz fusions ever recorded".