Killiney Hill, Coastal hilltop park in Dún Laoghaire-Rathdown, Ireland.

Killiney Hill is a coastal hilltop in Dún Laoghaire-Rathdown that rises 153 meters (502 feet) above sea level. Multiple pathways cross the hill, leading to viewing areas where you can see Dublin Bay, the Irish Sea, and the Wicklow Mountains.

The hill opened to the public in 1887 and was initially called Victoria Hill. Over time, monuments and structures were added to the landscape, shaping it into the recreational space it is today.

The obelisk on the summit carries the inscription "Last year being hard with the poor walks about these hills and this were erected by John Mapas, June 1742". The Wishing Stone lies north-east of the obelisk beside a smaller monument known locally as Boucher's Monument, which a tourist in 1796 linked to a bequest by the last Mr. Mapas for a family memorial.

The hill is easily accessible by foot from the nearest train station, requiring only a short walk to reach. Multiple entry points and pathways make it straightforward to explore different parts of the hill at your own pace.

The Wishing Stone stands north-east of the obelisk, beside a smaller monument known locally as Boucher's Monument. A tourist in 1796 noted that a memorial was about to be placed on the hill under the will of the last Mr. Mapas, who left a large sum for a monument to his family.