Alphonse Malaquin (24 October 1868 – 22 April 1949) was a French zoologist born in the village of Cambrésis.
In 1888 he began work as an assistant at the zoological laboratory at the Faculté des Sciences in Lille.
In 1895 he defended his doctorate with a highly regarded thesis on the annelid family Syllidae, titled Recherches sur les Syllidiens.
[1] During World War I both facilities sustained extensive damage, with restoration and re-installation taking several years to complete, the museum being reopened to the public as late as 1925.
A species of monstrillid copepod known as Cymbasoma malaquini (Caullery & Mesnil, 1914) is named after him.