Kilroy Was Here is the eleventh studio album by the rock band Styx, released on February 22, 1983. The title comes from a famous World War II graffito Kilroy was here. It was the final album of original material to be released by the 'classic' Shaw/Panozzo/Panozzo/Young/DeYoung lineup of the band.
The album is certified platinum by the RIAA. As of 2014, it is the last album by the band to be certified platinum.