Christiaan Eijkman (1858–1930) was a Dutch physician, professor of physiology and Nobel laureate. Johan Fredrik Eijkman (1851–1915), a chemist
Eijkman may also refer to several places named in his honor: Eijkman (crater), a crater on the Moon 9676 Eijkman, an asteroid Eijkman Point, a place in Antarctica Eijkman test.