Sayal (Nepali: सायल) is a Gaupalika in Doti District in the Sudurpashchim Province of far-western Nepal. Sayal has a population of 19551.The land area is 122.72 km. It was formed by merging Chapali, Toleni and Khatiwada VDCs.

At the time of the 2011 Nepal census, Sayal Rural Municipality had a population of 19,575. of these, 99.2% spoke Doteli, 0.4% Bajhangi, 0.3% Nepali and 0.2% other languages as their first language.

In terms of ethnicity/caste, 62.7% were Chhetri, 11.5% Kami, 8.3% Damai/Dholi, 7.4% Thakuri, 3.4% Hill Brahmin, 2.7% Sarki, 1.2% Kumal, 0.9% Badi, 0.8% Lohar, 0.4% Sanyasi/Dasnami, 0.3% other Dalit, 0.1% Yadav and 0.2% others.

In terms of religion, 100.0% were Hindu.

In terms of literacy, 44.1% could read and write, 5.2% could only read and 50.7% could neither read nor write.