John Cromwell Mather (1946 nî 8 goe̍h 7 ji̍t chhut-sì ) sī Bí-kok ê bu̍t-lí-ha̍k-ka. I tī 2006 nî kah George Smoot tâng-chê ti̍t tio̍h Nobel Bu̍t-lí-ha̍k Chióng.

John C. Mather