Sir John Bertrand Gurdon (JBG), FRS (ojoibi 2 October 1933) je aseoroalaye onidagbasoke ara Britani. O gbajumo fun iwadi re ninu igbegbin onihaanu and cloning. Won fun ni Ebun Lasker ni 2009. Ni 2012, ohun ati Shinya Yamanaka gba Ebun Nobel fun Iwosan fun iwari won pe awon ahamo to ti dagba se sodi ahamo onihu.