Akali Kaur Singh Nihang (28 February 1886 – 23 January 1953) was a religious preacher and Sikh scholar.

He turn Nihang and renamed as Kaur singh at Hazoor Sahib, Nanded.

He worked on alphabetical index of Guru Granth Sahib in 1907, and completed it in 1920.

He preached message of Gurus in Chakar and opened chain of schools, set up library and published bullietn called Ashram Samachar.

His works include Sri Gur Sobha (1925),[6] Kavi Senapati, Gutka Pramanik Nitnem, Buddhibaridh Hitopadesh Ratnakar(Panchtantra in Gurmukhi), Sukh Sagararihat Gharaa Vaid(Ayurveda), Istri Sankat mochan (Women upliftment).