Otto Wallach (1847 nî 3 goe̍h 27 ji̍t – 1931 nî 2 goe̍h 26 ji̍t) sī chi̍t ūi Tek-kok ê hòa-ha̍k-ka. I mā-sī 1910 nî Nobel Hòa-ha̍k Chióng ê ti̍t-chióng-jîn; i ti̍t-chióng ê lí-iû sī [for] his services to organic chemistry and the chemical industry by his pioneer work in the field of alicyclic compounds.

Otto Wallach