Sahib Singh (Gurmukhi: ਸਾਹਿਬ ਸਿੰਘ) (16 February 1892 – 29 October 1977) was a Sikh academic who made a contribution to Sikh literature. He was a grammarian, author, scholar and theologian. He was born in a Hindu family to father Hiranand and was named Natthu Ram.