Morten Peter Meldal (born 16 January 1954) is a Danish chemist and Nobel laureate.

He is best known for developing the CuAAC-click reaction,[2][3] concurrently with but independent of Valery V. Fokin and K. Barry Sharpless.

[8] Meldal developed several technological techniques and instruments for peptide synthesis near the start of his career.

He first presented the cycloaddition of acetylenes and azides used in peptide and protein conjugations, in polymers and in material sciences.

[11] In 2019, Meldal co-founded the company Betamab Therapeutics ApS, based on the concept of beta-bodies, i.e. peptide mimics of antibodies.