A vertical flag display apparatus comprises a support bar, a flag spar, a flag pole, and locking end caps. The flag spar can be a rod, bar, or other tubular pole. The flag spar threads through a flag sleeve so that the flag hangs down from the spar when the spar is held parallel to the ground. The locking end caps attach to an end of the spar and ensure that the flag can not slide off of the spar. The end caps attach to each end of the support bar securing the spar to the support bar. The flag pole attaches to the support bar and extends downwards and perpendicular to the support bar. The flag pole is attached to the side of a building, etc. so as to hold the flag pole generally 45 degrees out from the side of the building and in an upwards orientation.