Flag created by CincyFlags for the neighborhood. 
Its symbolism, according to CincyFlags in [1]:
"Four semi circles represent the lion waterspouts on the Kilgour Fountain.
Green lines representing Hyde Park Square on Erie Avenue.

A central orange star symbolizes the light and energy of the statue’s gas lamps."
Own work using: https://www.cincyflags.com/hyde-park
CincyFlags