Avé-Lallemant or Avé Lallemant is a surname. Notable people with the surname include:
Hans Avé Lallemant (1938–2016), Dutch born-American geologist Julius Léopold Eduard Avé-Lallemant (1803–1867), German botanist Robert Christian Avé-Lallemant (1812–1884), German physician and explorer Theodor Avé-Lallemant (1806–1890), German musician and music teacher