Covered stalls will line the street and have available for sale a whole variety of Pembrokeshire produce and arts and crafts. There will be games, musicians and entertainers and plenty of fun for all.
Stall holders and visitors are being asked to get into the spirit of the thing by wearing medieval style costumes!
This is part of a year of celebrations in the town commemorating a host of events, including the Tenby Charter of 1402, the Queen's Golden Jubilee and Tenby RNLI's 150th anniversary, amongst many others.
Look for the leaflet around town which outlines some of the many entertainments and events planned throughout the year.
The fair will be held on Bank Holiday Sunday, August 25, and anybody wishing to book a stall should contact Marion Davies on (01834) 845841.