:Llyn Nantlle Uchaf

{{Use dmy dates|date=November 2019}}

{{Infobox body of water

| name = Llyn Nantlle Uchaf

| image = LlynNantlleUchaf-01s.jpg

| caption =

| image_bathymetry =

| caption_bathymetry =

|pushpin_map=Wales Gwynedd

| location = Wales

| coords = {{coord|53|3|15|N|4|13|4|W|region:GB_type:waterbody|display=inline,title}}

| lake_type = natural

| inflow =

| outflow = Afon Llyfni

| catchment =

| basin_countries = United Kingdom

| length =

| width =

| area = {{convert|80|acre|abbr=on}}

| depth =

| max-depth =

| volume =

| residence_time =

| shore =

| elevation =

| islands =

| cities = Nantlle

| reference =

}}

{{langnf|cy|Llyn Nantlle Uchaf|Upper Nantlle Lake|italic=no}} is a lake in the Nantlle Valley, Gwynedd, Wales. The lake forms the foreground in Richard Wilson's painting "Snowdon from Llyn Nantlle".[http://www.liverpoolmuseums.org.uk/walker/collections/18c/wilson.aspx National Museums Liverpool] {{webarchive|url=https://web.archive.org/web/20100819234414/http://www.liverpoolmuseums.org.uk/walker/collections/18c/wilson.aspx |date=2010-08-19 }}

Llyn Nantlle Isaf (Lower Nantlle Lake) no longer exists as it was drained to protect the slate works.The lakes of North Wales, Jonah Jones, {{ISBN|0-8624-3626-5}}