Wat Si Saket is a Buddhist wat (temple) in Vientiane, Laos. It is situated on Lan Xang Road, on the corner with Setthathirat Road, to the northwest of Haw Phra Kaew, which formerly held the Emerald Buddha.
Wat Si Saket was built in 1818 on the orders of King Anouvong (Sethathirath V.) Si is derived from the Sanskrit title of veneration Sri, prefixed to the name of Wat Saket in Bangkok, which was renamed by Anouvong's contemporary, King Rama I.
Wat Si Saket is a Buddhist temple in Vientiane, Laos. It may now be the oldest temple still standing in Vientiane.
Wat Si Saket was built in the Siamese style of Buddhist architecture, with a surrounding terrace and an ornate five-tiered roof, rather than in the Lao style.