rennert

Rennert is a surname. Notable people with the surname include:

• Dutch Rennert (1930–2018), American baseball umpire
• Günther Rennert (1911–1978), German opera director and administrator
• Ira Rennert (born 1934), American businessman
• Peter Rennert (born 1958), American tennis player
• Wolfgang Rennert (1922–2012), German opera conductor