:Abergeirw

{{Use dmy dates|date=September 2024}}

{{Use British English|date=October 2013}}

{{Infobox UK place

| country = Wales

| official_name = Abergeirw

| welsh_name =

| coordinates = {{coord|52.844|-3.829|display=inline,title}}

| static_image_name = A simple place of worship - geograph.org.uk - 478156.jpg

| static_image_caption = Abergeirw Chapel

| population =

| population_ref =

| community_wales = Brithdir and Llanfachreth

| unitary_wales = Gwynedd

| lieutenancy_wales =

| constituency_welsh_assembly = Dwyfor Meirionnydd

| constituency_westminster = Dwyfor Meirionnydd

| post_town = DOLGELLAU

| postcode_district = LL40

| postcode_area = LL

| dial_code = 01341

| os_grid_reference = SH768289

| cardiff_distance =

}}

Abergeirw is a hamlet located in Gwynedd, North Wales.

The village of nine properties is located between Dolgellau and Trawsfynydd.

On 19 December 2008 National Grid plc connected it to the UK national electricity power grid, making it the last village in Wales to be supplied with mains electricity.{{cite web|url=http://www.walesonline.co.uk/news/wales-news/2008/12/19/remote-village-is-the-last-to-get-electricity-91466-22511898/|title=Remote village is the last to get electricity|publisher=Walesonline|date=19 December 2008|access-date=19 December 2008| archive-url= https://web.archive.org/web/20081222063615/http://www.walesonline.co.uk/news/wales-news/2008/12/19/remote-village-is-the-last-to-get-electricity-91466-22511898/| archive-date= 22 December 2008 | url-status= live}}