Barnett Kenna (1827 – May 28, 1890) was a Union Navy sailor in the American Civil War and a recipient of the U.S. military's highest decoration, the Medal of Honor, for his actions at the Battle of Mobile Bay. Kenna's official Medal of Honor citation reads: Kenna died on May 28, 1890, at age 62 or 63 and was buried at Cherry Hill Cemetery in Gloucester, Massachusetts.