Philopappou or Filopappou (Greek: Φιλοπάππου pronounced [fi.loˈpa.pu]) is a small neighborhood of Athens, Greece south of the Philopappos Monument, from which it takes its name.

On the south side of the hill there is also the Dora Stratou theater.

The oldest name "Segio hill" dates back to the time of the Frankish occupation and was preserved until the beginning of the last century.

In 2002, in the framework of the Unification of Archaeological Sites of Athens and later under the Ministry of Culture Michalis Liapis, an effort was started to have the hill of Filopappos fenced off, to be visitable at scheduled times, and the plans included its inclusion in the single ticket of the sites of the unification.

In November 2002, an active residents' movement was formed, which prevented these plans and worked to defend open access to the hill, eventually winning the battle and legally at STE in 2015.