Knockanaffrin

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

{{Use dmy dates|date=January 2021}}

{{Use Irish English|date=January 2021}}

{{Infobox mountain

| name = Knockanaffrin

| other_name = Cnoc an Aifrinn

| photo =

| photo_caption =

| photo_size =

| elevation_m = 755

| elevation_ref = {{cite web|url=https://mountainviews.ie/summit/74/|publisher=MountainViews.ie|title=Knockanaffrin|accessdate=2012-01-28}}{{cite peakbagger|pid=9014|name=Knockanaffrin|accessdate=2021-01-06}}

| prominence_m = 289

| prominence_ref =

| listing = Hewitt, Marilyn

| translation = hill of the mass

| language = Irish

| location = County Waterford, Ireland

| range = Comeragh Mountains

| map = island of Ireland

| range_coordinates =

| map_relief = yes

| map_caption = Location in Ireland

| coordinates = {{coord|52|17|21|N|7|34|56|W|type:mountain_region:IE_scale:100000|format=dms|display=inline,title}}

| coordinates_ref =

| grid_ref_Ireland =

| topo =

}}

Knockanaffrin ({{Irish derived place name|Cnoc an Aifrinn|hill of the mass}}) is a mountain in County Waterford, Ireland. It is part of the Comeragh Mountains.