Kallmann

Kallmann is a German surname that may refer to
 * Franz Josef Kallmann (1897–1965), German-born American psychiatrist
 * Kallmann syndrome
 * Gerhard Kallmann (1915–2012), German-born American architect and academic
 * Kallmann McKinnell & Wood, an architectural design firm based in Boston, United States
 * Hans Jürgen Kallmann (1908–1991), German artist
 * Hartmut Kallmann (1896–1978), German physicist
 * Helmut Kallmann (1922–2012), Canadian musicologist and librarian