Blaschke is a German surname. Notable people with the surname include:
Hugo Blaschke, (1881–1959), German dental surgeon, Hitler's personal dentist Jarin Blaschke (born 1978), American cinematographer Jayme Lynn Blaschke (born 1969), American journalist and author of science fiction, fantasy and related non-fiction Wilhelm Blaschke (1885–1962), Austro-Hungarian differential and integral geometer Hanns Blaschke (1896–1971), Austrian NSDAP politician
See also 17637 Blaschke, a main-belt asteroid