QED is an AOR/hard rock band from Dublin, County Dublin, Ireland, that was formed in 1988.

Line-Up:
Dave King - Vocals
Shane Carroll - Guitar / Keyboard
Paul Reid - Bass
Alan O'Connor - Drums

All four were previously in the Dublin based band Stilwood.
Dave King joined Fastway with 'Fast' Eddie Clarke and eventually brought the other Stilwood members into that band.
When they all left Fastway, they briefly formed QED.