Avernakø is a Danish island south of Funen.
Originally, Avernakø was two separate islands, "Korshavn" and "Avernak".
In 1937 the two islands were connected by a dam named "Drejet" ("The Turn"), due to its peculiar shape.
Children attend the school at the nearby island Lyø.
Ø-Færgen operates a ferry between Faaborg, Avernakø and Lyø (crossing time is 30 and 70 minutes respectively).