A vaṭadāge is a type of Buddhist structure found in Sri Lanka. It also known as a dage, thupagara and a cetiyagara. Although it may have had some Indian influence, it is a structure that is more or less unique to the architecture of ancient Sri Lanka. Vatadages were built around small stupas for their protection, which often enshrined a relic or were built on hallowed ground. Circular in shape, they were commonly built of stone and brick and adorned with elaborate stone carvings. Vatadages may have also had a wooden roof, supported by a number of stone columns arranged in several concentric rows.

Thuparamaya is the earliest documented Buddhist temple in Sri Lanka. Its building dates to the arrival of Mahinda Thera (Mahindagamanaya) and the introduction of Buddhism to the island.