Killcohook National Wildlife Refuge (founded as Killcohook Migratory Bird Refuge) was a National Wildlife Refuge located on the east bank of the Delaware River adjacent to the current Supawna Meadows National Wildlife Refuge. It had originally been established in 1934 as a secondary dredged material disposal site for use by the Army Corps of Engineers. Its status as a refuge was revoked in 1998 by the U.S. Congress and it is currently used as a confined disposal facility by the U.S. Army Corps of Engineers.