David A. Tirrell is an American chemist and a Ross McCollum-William H. Corcoran Professor and Professor of Chemistry and Chemical Engineering at the California Institute of Technology (Caltech).His area of research is the manipulation and measurement of interfacial properties of materials. His research has a wide range of applications, including coatings, adhesion, lubrication, bioengineering and biomedical intervention.He won Dickson Prize in Science in 2010.