Saidgai Lake (Pashto: سيدګۍ ډنډ; Urdu: سیدگئی جھیل), also known as 'Saidgai Dand', is situated in the upper reaches of Ushirai Dara in the Upper Dir District of Khyber Pakhtunkhwa, Pakistan.

The lake is a popular tourist destination, especially from June to August, attracting visitors from Dir and other regions.

[citation needed] Residents of both Upper Dir and Swat District claims administrative rights over the area.

Its waters flow into nearby streams that eventually join the Panjkora River in Dir.

[2] The lake is accessible from three different trails and sides; Ushirai Dara, Upper Dir (shortest way) which is about 6 hours by foot, Sulatanr (Roringar Valley), Upper Swat and Lalko (Gabina Jabba); about 10 to 12 hours.