The celebration of Welsh culture, through language, literature, music, and the arts, was last in the county in 2011.
The annual festival has been held across North Wales on may occasions, having last been held in Flintshire in 2007.
In 1985 it was the turn of Rhyl and District, and this gallery shows just a fraction of the competitors and visitors.
See more: National Eisteddfod in Wrexham 1977
To see more photos from the past, courtesy of the Leader archives, checkout our Local Bygones section online.
For more photos and chat about local people and places, you can also join the ‘Local Bygones’ Facebook group.
If you have any old photos you would like to share, email claire.pierce@newsquest.co.uk
• The 2025 National Eisteddfod in Wrexham takes place from August 2-9, for more details, visit: eisteddfod.wales/festival/2025