Kailali 1 is one of five parliamentary constituencies of Kailali District in Nepal.

This constituency came into existence on the Constituency Delimitation Commission (CDC) report submitted on 31 August 2017.

[1] Kailali 1 incorporates Joshipur Rural Municipality, Tikapur Municipality, wards 6 and 8 of Bhajani Municipality and wards 1, 3, 4, 6 and 7 of Janaki Rural Municipality.

It encompasses the following Sudurpashchim Provincial Assembly segment