Honfleur is a commune in the Calvados department in northwestern France. It is located on the southern bank of the estuary of the Seine …Honfleur is a commune in the Calvados department in northwestern France. It is located on the southern bank of the estuary of the Seine across from Le Havre and very close to the exit of the Pont de Normandie. The people that inhabit Honfleur are called Honfleurais.