Johanna "Jannie" van Eyck-Vos (born 19 January 1936) is a retired Dutch track and field athlete.
She competed at the 1964 Summer Olympics in the 800 m event, but failed to reach the final despite setting a personal record.
She started as a javelin thrower and won a national title in 1956, but then changed to middle-distance running and won another title, in 1966, in the 800 m.