Yes and No. There are no actively commissioned battleships in the US fleet though a variety of US Battleships are on display as museum ships throughout the US with the most notable being the USS Missouri.
The USS Missouri is an Iowa class battleship. This is the last battleship ever built by the United States. She entered service in June of 1944 and was assigned to the Pacific theater where she spent the remainder of the war. She actually never fought another ship or even fired at another ship. “The Mighty Mo” was a powerful ship for the era. Her main battery consisted of nine 16 inch guns grouped three to a turret in three turrets: two fore and one aft. A 16 inch gun was a gun which fired a shell 16 inches in diameter. Each of the shells weighed 2,700 pounds and could be fired as far as 20 miles. Primarily, the USS Missouri provided fire support for American troops in such battles as Iwo Jima and Okinawa. A friend of mine, the late Sander B. Weinstock, was a US Army sergeant and went ashore in the fourth or fifth wave during the invasion of Okinawa. The night before the landings, a phalanx of American battleships gave the island its strongest pounding, although they had been firing on it for several days. Sandy told me that he watched the bombardment for hours from the deck of his troopship and that it was the most awe inspiring sight he ever saw in his entire life. “The whole sky was lighted up.”
Although watching a line of American battleships blasting Japanese positions on such islands as Okinawa and Iwo Jima was an awesome spectacle, the ships actually did little damage to the Japanese troops and artillery pieces — much of it due to the relatively flat trajectory of shells fired from warships. Most of the men and the artillery were secure in deep tunnels and caves. Artillery pieces not hidden away, were usually emplaced in concrete bunkers which were then piled with sand and expertly camouflaged. Only a direct hit from the main battery of a battleship could destroy such an emplacement. American troops, particularly the US Marines at Tarawa and Iwo Jima, paid a terrible price in blood for the failure of the US Navy to provide effective fire support. The USS Missouri was decommissioned in 1955 after providing fire support to American troops in the Korean War.
This is not a reflection of the men who served aboard the ship in the 80s and 90s, however, modernizing the USS Iowa and the USS Missouri, both constructed in the mid-1940s, was a waste of time and energy and money and was done only because of the macho vanity of some politicians in Washington. Recommissioned in 1986 after several years of expensive and virtually useless refitting, the USS Missouri participated in the Gulf War. She provided a very expensive platform for firing cruise missiles. She fired her main batteries a number of times on Iraqi targets close to the shore. You will see from the video the antiquated operation of the actual main battery itself. In 1992 the ship was decommissioned and in 1998 she was donated to the USS Missouri Memorial Association and towed to Pearl Harbor where she was opened as a museum ship in January of 1999.
The most common photo of this ceremony shows General Douglas MacArthur signing. He upstaged everyone on that day, as on every other day when cameras and the media were present. He used his psychotic narcissism to greatly inflate his achievements and obscure his mediocre record as a fighting general.