Knab is a surname. Notable people with the surname include:
Armin Knab (1881–1951), German composer and musical writer Frederick Knab (1865–1918), artist and entomologist Johannes Knab (born 1946), former German cyclist Ruben Knab (born 1988), Dutch rower Sebastien Knab, (1632–1690), Roman Catholic prelate Ursula Knab (1929–1989), German track and field athlete Werner Knab (1908-1945), German military officer
See also