Tetzlaff is a surname. It is a German rendering of a West Slavic personal name. Notable pepople with the surname include:
Charles Tetzlaff (born 1938), American attorney from Vermont Christian Tetzlaff (born 1966), German violinist, brother of Tanja Dale H. "Ted" Tetzlaff (1903–1995), American cinematographer Dieter Tetzlaff (born 1944), East German speedway rider Doris Tetzlaff (1921–1998), American baseball player Dörthe Tetzlaff (born 1974), German geologist Percy Tetzlaff (1920–2009), New Zealand rugby player Rob Tetzlaff (1935–2012), American Olympic cyclist Sarah Tetzlaff (born 2000), New Zealand speed climber Tanja Tetzlaff (born 1973), German cellist, sister of Christian Teddy Tetzlaff (1883–1929), American racecar driver Toni Tetzlaff (1871–1947), German actress Walter Tetzlaff, birth name of Walter Tetley (1915–1975), American child actor
See also
Tetzlaff Peak, a mountain in Utah, US Tetzlav (before 1163 – between 1170 and 1181), Prince of Rügen