Well, some of these have already been mentioned, but I'll vote for them again.
Stan Getz - Sweet Rain
Miroslav Vitous - Infinite Search
Chet Baker - Comin' On
Dave Pike - The Doors of Perception
Steve Marcus - Tomorrow Never Knows
Steve Marcus - Count's Rock Band
Mose Allison - I've Been Doin' Some Thinking
Attila Zoller - Gypsy Cry
Cal Tjader - Plugs In
Mark Murphy - Bridging a Gap
And although this is bossa nova pop, high marks go to Sergio Mendes & Brasil '66's second album, Equinox.
edit: I want to add some jazz rock that was important to me at the time. These bands were marketed as rock bands, but there was a lot of jazz there.
Manfred Mann Chapter III
Manfred Mann Chapter III Volume 2
If (with Dick Morrissey)
If2
If3
If4 (also known as Waterfall)
Dreams (with the Brecker Brothers, John Abercrombie and Billy Cobham)