Knocknafallia

{{short description|Mountain in County Waterford, Ireland}}

{{Use dmy dates|date=January 2022}}

{{Use Irish English|date=January 2022}}

{{Infobox mountain

| name = Knocknafallia

| other_name = Cnoc na Faille

| photo =

| photo_caption =

| photo_size =

| elevation_m = 668

| elevation_ref = {{cite peakbagger|pid=20669|name=Knocknafallia|accessdate=2021-03-19}}

| prominence_m = 499

| prominence_ref =

| listing = Hewitt, Marilyn

| translation = hill of the cliff

| language = Irish

| location = County Waterford, Ireland

| range = Knockmealdown Mountains

| map = island of Ireland

| range_coordinates =

| map_relief = yes

| map_caption = Location in Ireland

| coordinates = {{coord|52|13|11|N|7|52|18|W|type:mountain_region:IE_scale:100000|format=dms|display=inline,title}}

| coordinates_ref =

| grid_ref_Ireland =

| topo =

}}

Knocknafallia ({{Irish derived place name|Cnoc na Faille|hill of the cliff}}){{cite web|url=https://www.logainm.ie/en/50022|title=Cnoc na Faille/Knocknafallia|work=Placenames Database of Ireland|accessdate=19 March 2021}}{{cite web|url=http://mountainviews.ie/summit/158/|publisher=MountainViews.ie|title=Knocknafallia|accessdate=2012-01-28}} is a 668 m (2,192 ft) high mountain in County Waterford, Ireland.