Jerry Weiss (born May 1, 1946 in New York City) is an American trumpet and flugelhorn player, best known as a founding member of the jazz fusion band Blood, Sweat & Tears.
Weiss appeared on Blood, Sweat & Tears ( BS&T) critically acclaimed 1968 debut album, Child Is Father to the Man. He left soon afterwards to help form the short-lived horn-band, Ambergris, where he played bass guitar and piano and was the principal arranger. He also contributed three songs on the album and co-wrote another. Weiss has made infrequent appearances on recordings by other artists, including fellow BS&T alum, Al Kooper.