Llwyn Isaf is a green in the centre of Wrexham. It is surrounded on two sides by the town's Guildhall and on another by the Library Arts Centre.
The green is most popular with students from the nearby Yale College. The green is home to a bandstand and often hosts outdoor events and activities.
All ball games and alcohol are banned on the green.
Wrexham Council run a webcam that is pointed at the grass.
The green was originally the landscaped grounds of a mansion house known as Llwyn Isaf. It now lies at the centre of Wrexham's civic centre just off Queens Square. The Welsh Children in Need concert was held at this location in 2005.
- "Llwyn Isaf". Wrexham Town Walk. Wrexham County Borough Council. Retrieved 2012-10-06.