| Coordinates: | 53.155°N -3.04°W |
| Official Name: | Penymynydd |
| Label Position: | left |
| Unitary Wales: | Flintshire |
| Lieutenancy Wales: | Clwyd |
| Country: | Wales |
| Constituency Welsh Assembly: | Alyn and Deeside |
| Constituency Westminster: | Alyn and Deeside |
| Post Town: | CHESTER |
| Postcode District: | CH4 |
| Postcode Area: | CH |
| Dial Code: | 01244 |
| Os Grid Reference: | SJ304626 |
| Static Image: | Bank Farm, Penymynydd (geograph 3443432).jpg |
| Static Image Caption: | Bank Farm, Penymynydd |
Penymynydd is a small village in Flintshire, Wales, merging with the larger neighbouring village of Penyffordd. The name Penymynydd is Welsh, meaning "top" or "end of the mountain".
The village consists of a number of modern housing estates (Well House Drive, Coed Terfyn, Coed Y Graig), and also housing on Penymynydd Road (most of which is in Penyffordd). Penymynydd has one church: St John The Baptist's Church. A second church formerly existed in the village and has since been redeveloped. St John The Baptist's Primary School is church aided and takes children between the ages of 3 and 11.