The comments Tuesday from Admiral Habibollah Sayyari on state TV are part of Iran's response to Washington's beefed up naval presence in the Persian Gulf.
The U.S. Navy's 5th fleet is based in Bahrain - across the gulf from Iran - and the U.S. plans maritime war games later this month.
Iran has made similar claims in the past that its ships could soon sail into international waters off the U.S. coast.
Tehran and Washington have been in odd over Tehran's nuclear ambitions that the West suspects it has aimed at weapon. Iran denies the charge.
There is no way a third world navy could put warships off our coast, first the requirements for refueling and resupplying make it impossible, secondly Iran has no tradition or experience as a blue water navy, and most importantly the Atlantic has been an American lake for over a hundred years.