| Geokaun | |
| Other Name: | an Geocán |
| Elevation M: | 266 |
| Elevation Ref: | [1] |
| Prominence M: | 266 |
| Listing: | Marilyn |
| Language: | Irish |
| Location: | Valentia Island, County Kerry, Ireland |
| Coordinates: | 51.9227°N -10.3466°W |
| Map: | island of Ireland |
| Map Relief: | yes |
| Grid Ref Ireland: | V386770 |
Geokaun Mountain (Irish: an Geocán) is the highest mountain on Valentia Island,[2] County Kerry.
On Geokaun's northern face the 600disp=flipNaNdisp=flip Fogher Cliffs (Irish: an Fhoithir) meet the sea.
From the summit there are views of the Skellig Islands, Dingle Peninsula, the Blasket Islands, Beginish Island, Cahersiveen, Portmagee and MacGillycuddy's Reeks, including three of Ireland's six highest mountains: Carrauntoohil, Beenkeragh and Caher.
The summit of Geokaun Mountain is privately owned, and a fee is required to access the mountain via the main track to the summit.
Situated along the main path up the mountain are 4 viewing areas with 36 information plaques on topics of social, environmental and historical interest in the area. These plaques include information on subjects such as: