Wihan Pho Lanka derives its name from the presence of a large Sri Maha Bodhi tree planted at the center of the courtyard within the hall. It is believed that this Bodhi tree originated from a lineage brought from Sri Lanka, hence the name Pho Lanka (Lankan Bodhi Tree). The hall is named after this sacred tree.
The structure is located next to Wihan Khian, on the northern side of both Wihan Khian and the main stupa (Phra Borommathat Chedi). It is built in the traditional style of cloistered halls that surround revered objects or sacred monuments. The hall has a square layout, enclosing the sacred Sri Maha Bodhi tree at its center.
