Tekun Atlantika na nufin yankin da ke gabar tekun gabashin Amurka ta Arewa da ke daura da Tekun Atlantika. Wannan yanki ya haɗa da jihohin bakin teku na Maine, New Hampshire, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Pennsylvania, Delaware, Maryland, Virginia, North Carolina, South Carolina, Georgia, da Florida. Kalmar "Tekun Atlantika" kuma na iya komawa musamman ga gabar tekun Atlantika kanta.