Bylchau

{{Short description|Hamlet in Conwy County Borough, Wales}}

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

{{Infobox UK place

| country = Wales

| official_name = Bylchau

| welsh_name =

| coordinates = {{coord|53.154|-3.532|display=inline,title}}

| static_image_name = St Thomas's Church, Bylchau - geograph.org.uk - 1161058.jpg

| static_image_caption = St Thomas's Church, Bylchau

| population =

| population_ref =

| community_wales = Llansannan

| unitary_wales = Conwy

| lieutenancy_wales =

| constituency_welsh_assembly = Clwyd West

| constituency_westminster = Bangor Aberconwy

| post_town = DENBIGH

| postcode_district = LL16

| postcode_area = LL

| dial_code = 01745

| os_grid_reference = SH976629

| cardiff_distance =

}}

Bylchau ({{pronunciation|Bylchau.ogg|Welsh pronunciation|help=no}}) is a hamlet in Conwy County Borough, Wales. It is located at the junction of the A544 with the A543, some 5 miles to the south-west of Denbigh, and just a mile from the county border with Denbighshire.

The village has a church, which was consecrated on 27 October 1857, and dedicated to St Thomas.{{cite web|url=http://www.genuki.org.uk/files/wal/DEN/Bylchau/index.html|title=Bylchau|work=GENUKI|accessdate=23 January 2016}}

Together with the village of Llansannan, the residents of Bylchau elect community councillors to represent them on Llansannan Community Council.[http://www.llansannan.org/item/cygnor_council.html Cyngor / Council], Llansannan Community Council website. Retrieved 25 March 2018.