John Burdon Sanderson Haldane FRS (5 November 1892 - 1 December 1964), to gbajumo bi Jack (sugbon o lo 'J.B.S.' ninu awon iwe re), je was a -born asiseabimo ati aseoroalaye onisisodomiran omo Britani to gba iyin fun ise re ninu idagbasoke ironu oniti-Darwin tuntun.. 
O se alaisi lojiji loju orun nitori ete to gbèé ni odun 1998 nigba to je omo-odun 38.. 