Sainyabuli province

Xayabuli province
ແຂວງ ໄຊຍະບູລີ
Village on the Mekong
Map of Xayabuli province
Location of Xayabuli province in Laos
Coordinates: 19°15′N 101°45′E / 19.25°N 101.75°E / 19.25; 101.75
CountryLaos
CapitalSainyabuli
Area
  Total
16,389 km2 (6,328 sq mi)
Population
 (2020 census)
  Total
423,496
  Density26/km2 (67/sq mi)
Time zoneUTC+7 (ICT)
ISO 3166 codeLA-XA
HDI (2022) 0.675
medium · 2nd

Sainyabuli province (Lao: ໄຊຍະບູລີ, pronounced [sáj.ɲā.bùː.líː]; alternate spellings: Xayabuli, Xaignabouri, Xayaboury, Sayabouli, Sayabouri) is a province in northwest Laos. The capital of the province is the town of Saiyabuli. Saiyabuli is the only Lao province that is completely west of the Mekong River.