The An Grianan Theatre in Letterkenny has a rich and storied history that spans over 20 years. The theatre was established in 1999 as a joint initiative between Donegal County Council and the Letterkenny Arts Centre, with the aim of providing a venue for the performing arts in the region.

The theatre's name comes from a nearby ancient hill fort known as Grianán of Aileach, which has been an important cultural and historical site in the region for centuries. The name An Grianan was chosen to reflect the theatre's commitment to preserving and promoting the rich cultural heritage of the area.

In its early years, the An Grianan Theatre focused primarily on showcasing local and regional talent, with an emphasis on traditional Irish music and theatre. The theatre quickly gained a reputation for being a hub for emerging talent, and many well-known actors, musicians, and directors got their start on the An Grianan stage.

Over time, the theatre expanded its programming to include a wide range of performing arts, including plays, musicals, dance performances, and comedy shows. The theatre has also hosted several major festivals and events, including the annual Earagail Arts Festival and the Letterkenny One-Act Drama Festival.

In 2007, the An Grianan Theatre underwent a major renovation and expansion, with the addition of a new studio space, improved facilities for performers and audience members, and a new bar and restaurant. The renovation was designed to make the theatre more accessible and welcoming to visitors, and it has been a great success.

Throughout its history, the An Grianan Theatre has remained committed to promoting inclusivity and diversity in the arts. The theatre has a strong track record of working with underrepresented communities, and it actively seeks out and supports emerging artists from all backgrounds.

In conclusion, the An Grianan Theatre in Letterkenny has played an important role in the cultural life of the region for over 20 years. With its focus on promoting local talent and preserving the rich cultural heritage of the area, the theatre has become a beloved institution and a vital hub for the performing arts. As it continues to evolve and grow, the An Grianan Theatre is sure to remain an important cultural institution in the region for many years to come.