Kirkstall Abbey is a ruined Cistercian monastery located in Leeds, West Yorkshire, England. It was founded in 1152 by Cistercian monks from Fountains Abbey and became one of the wealthiest monasteries in the country. The abbey played an important role in the wool trade, and at its height, it owned extensive sheep pastures and wool markets.

The abbey is built in the Early English Gothic style and features a large nave, a choir, a transept, a chapter house, and a cloister. The nave and choir were originally decorated with colorful wall paintings, but only fragments of them remain. The chapter house is considered one of the best examples of its kind in England, with elaborate carvings and a magnificent vaulted ceiling.

After the dissolution of the monasteries in the 16th century, the abbey was sold off and fell into ruin. Today, it is a popular tourist attraction and is managed by English Heritage. The ruins are surrounded by parkland, and visitors can explore the ruins, take a guided tour, or attend one of the many events that take place throughout the year, such as outdoor theater productions and music concerts.