Hamburger comes from Hamburg, Germany — it has nothing to do with ham, but English speakers' misanalysis of the word gave us 'burger' and 'cheeseburger.'
From Hamburg steak, a dish associated with the German city of Hamburg. German immigrants brought the tradition of minced beef preparations to the United States in the 19th century. The -er suffix is the standard German demonym ending, as in Berliner or Frankfurter. The word has nothing to do with ham — the ham in hamburger comes