Har Gobind Khorana (Sindhi: هار گوبند خرانه) (also known as Hargobind Khorana; 9 January 1922 – 9 November 2011) was a biochemist. He shared the 1968 Nobel Prize in Physiology or Medicine with Marshall W. Nirenberg and Robert W. Holley.
He is part of a poor family in India. He worked in Madison, Columbia, and Boston.
Their work was on the order of nucleotides in nucleic acids. Each triplet of nucleotides codes for a particular amino acid. Therefore the nucleic acid sequence controls how proteins are built. Khorana was the first to build a synthetic gene, in 1970. This helped a lot, with decoding the genetic code, which is based on amino acids.