Wat Pa Lelaiyok, also known as Wat Pha Ok, is an ancient temple dating back to the Ayutthaya period. It is located in the Lat Ya subdistrict, Mueang ward, Kanchanaburi. Inside the temple are significant historical sites: a pavilion containing a standing Buddha statue in the Pa Lelaiyok pose, surrounded on three sides by niches for other standing Buddha statues. Wat Pa Lelaiyok is now considered one of the historical sites of Kanchanaburi's old city.

Wat Pa Lelaiyok is located in the Lat Ya subdistrict, Mueang district, Kanchanaburi province. From the early Ayutthaya to the early Rattanakosin period, this area served as a border town to halt the Burmese army. The original name given to it by the villagers was "Wat Pha Ok," as it once housed a Buddha statue in the Mara Vijaya pose. This statue was damaged during a theft, when someone pierced the Buddha's chest to steal a treasure. It was later restored.

On the north, south, and west sides are niches for standing Buddha statues. The entrance is on the east side. Inside the pavilion stands a large stucco Buddha statue in the Pa Lelai pose, flanked by kneeling monkeys and elephants. The chapel is constructed of rectangular bricks and mortar and measures 7 meters wide, 20 meters long, and 3 meters high.

There are two entrances on the east side. The chapel stands on a rectangular base measuring 10 meters wide, 22 meters long, and 1.4 meters high. Stairs 1.20 meters wide lead up to the chapel on both the north and south sides. Chedi

Outside the glass wall is a round chedi made of bricks and mortar on a square base with a side length of 5 meters and a height of 1.50 meters.

It is a round chedi made of brick and mortar, plastered with cement. The top is broken off. The remaining height is approximately 7.5 meters. The chedi stands on a square, green base with sides measuring 8 meters. To the south of the chedi is an octagonal base of an ancient site. Diameter: 8 meters, height: 40 centimeters.

The glass wall is made of bricks, is 27 meters wide, 55 meters long, and approximately 1 meter thick. It has entrances on the east and north sides, each door being 1 meter wide. On the south side of the glass wall is a rectangular base measuring 2 meters wide and 3 meters long.