Alexander Fleming (1881 nî 8 goe̍h 6 ji̍t – 1955 nî 3 goe̍h 11 ji̍t) sī So͘-kat-lân ê seng-bu̍t-ha̍k-ka, io̍k-lí-ha̍k-ka, kiam si̍t-bu̍t-ha̍k-ka. I tī 1923 nî hoat-kiàⁿ lysozyme, 1928 nî tùi Penicillium notatum chhōe tio̍h benzylpenicillin (Penicillin G)