Ysgol Dyffryn Conwy

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

{{Infobox school

| name = Ysgol Dyffryn Conwy

| logo = Logo ysgol dyffryn conwy.png

| logo_size = 150px

| image =

| image_size =

| coordinates = {{coord|53.1392|-3.7926|type:edu_region:GB_dim:100|format=dms|display=inline,title}}

| mottoes = {{lang|cy|Gyda'n gilydd allwn gyrraedd ein potensial}}
Together we will achieve our potential
{{lang|la|Nec Timet Nec Tumet}}
We neither fear nor boast

| head_label = Headteacher

| head = Elan Davies (2014–2020)
Owain Gethin Davies (2020–present)

| address = Nebo Road

| city = Llanrwst

| county = Conwy

| country = Wales

| postcode = LL26 0AP

| language = Welsh and English

| local_authority = Conwy

| ofsted =

| urn = 401686

| staff =

| enrolment = {{ubl | 521 (Year 7-11) | 137 (Year 12-13)}}

| gender = Co-educational

| lower_age = 11

| upper_age = 18

| colours = Maroon and Black

| website = {{URL|https://ysgoldyffrynconwy.org/}} {{in lang|cy|en}}

}}

Ysgol Dyffryn Conwy is a bilingual co-educational comprehensive school in the town of Llanrwst in Conwy County Borough, North Wales. The school serves the community of Llanrwst and the many surrounding villages including the rural districts of Betws-y-Coed, Dolgarrog and Cerrigydrudion. There are around 658 pupils on roll, including 137 in the sixth form, which is lower than the figures at the time of the last inspection in 2014. Most of them are bilingual. The school has recently been moved onto one expanded site which had originally housed years 7-9 only. The site of the upper school (the oldest building and site of the original grammar school) has been developed into an NHS centre.

The headteacher of the school from 2014–2020 was Elan Davies, the first female headteacher of the school in 400 years.{{cite web |url= http://www.dailypost.co.uk/news/north-wales-news/first-female-headteacher-400-years-7871796 |title= First female headteacher in 400 years appointed to Ysgol Dyffryn Conwy |date= October 2, 2014 |access-date= October 5, 2014 |work= Daily Post}}

The school was founded as Llanrwst Grammar School in 1610 by Sir John Wynn, which was situated in the building of the 'upper school'. In 1960 it was renamed Ysgol Dyffryn Conwy (Conwy Valley School) to reflect the fact that the school served the wider Conwy Valley.

In February 2005 the pupils were all moved to the Sodexo-owned site on Nebo Road.