Live in Middelheim 1999 is a live album by John Zorn's Masada recorded in Antwerp, Belgium.
The Allmusic review by Steve Loewy awarded the album 4ý stars stating "Every album by John Zorn's Masada seems better than the last, and this one is no exception. By the time of this recording the group was a tightly cohesive unit, performing at an extremely high and satisfying level... With a recording time nearing 80 minutes, and substantial contributions from the entire quartet, the recording marks not so much a milestone in the life of the group as a symbol of its ability to constantly expand upon itself and draw on its not inconsequential roots".