Sa Kaeo (Thai: สระแก้ว, pronounced [sàʔ kɛ̂ːw]) is one of the 76 provinces (changwat) and lies in eastern Thailand about 200 km from Bangkok.

[5] It is thus one of the four newest provinces of Thailand, together with Amnat Charoen, Nong Bua Lamphu, and most recently, Bueng Kan.

The name of the province originated with this place, now the ponds lie inside a public park next to Mueang Sa Kaeo Municipality Office.

The provincial seal shows the sun rising over archaeological ruins, Prasat Khao Noi Si Chompu, a significant Khmer temple.

The provincial slogan is "Frontier of the east, beautiful forests, splendid waterfalls, ancient civilisations, Thai-Cambodian commerce".

[13] (Non-municipal areas are administered by 49 Subdistrict Administrative Organisations (SAO) (ongkan borihan suan tambon).