John Maynard Smith (1920 nî 1 goe̍h 6 ji̍t2004 nî 4 goe̍h 19 ji̍t) sī Eng-kok ê lí-lūn seng-bu̍t-ha̍k-chiá, chìn-hòa seng-bu̍t-ha̍k kiam ûi-thoân-ha̍k-chiá. I sī ín-ji̍p gém lí-lūn lâi chhù-lí chìn-hòa seng-bu̍t-ha̍k būn-tê ê lâng chi it.