Zeidler is a German surname. Notable people with the surname include:
Alfred Zeidler, German SS officerCarl Zeidler (1908–1942), American mayorDavid Zeidler (1918–1998), Australian chemist and industrialistEberhard Zeidler (born 1926), Canadian architectFrank Zeidler (1912–2006), American politicianJudith Zeidler (born 1968), German rowerOthmar Zeidler (1850–1911), Austrian chemistPeter Zeidler (born 1962), German football managerSusanna Elizabeth Zeidler (1657 – c. 1706), German poetWolfgang Zeidler (1924–1987), German legal scholar and judge