Anthonie (Antoon) Cornelis Oudemans Jzn (November 12, 1858 – January 14, 1943) was a Dutch zoologist.
[1] Although he was a specialist in acarology, the study of the ticks and mites, he was often best known for his books on sea monsters and the dodo.
[2] He wrote his dissertation on ribbon worms,[3] and in 1885 was appointed director of the Royal Zoological Gardens at The Hague.
[4] Oudemans worked on the acari and comprehensively reviewed all literature until 1850 in a series of articles titled Kritisch historisch Overzicht der Acarologie.
He had married Helena Johanna van de Velde in 1887, but became a widower, and remarried to Aletta Amelia Louise Pilgrim in 1919.