Lechner is a German surname. Notable people with the surname include:

• Alfred James Lechner Jr. (born 1955), American judge
• Anton Lechner (1907–1975), German SS officer
• Auguste Lechner (1905–2000), Austrian writer
• Bernard J. Lechner (1932–2014), American electronics engineer
• Corinna Lechner (born 1994), German cyclist
• Cornelia Lechner (born 1966), German tennis player
• Ed Lechner (1919–2015), American football player
• Elisabeth Adele Allram-Lechner (1824–1861), Czech actress
• Emilio Lechner (born 1940), Italian luger
• Erika Lechner (born 1947), Italian luger
• Eva Lechner (born 1985), Italian cyclist
• Florian Lechner (born 1981), German footballer
• Franco Lechner, known as Bombolo (1931–1987), Italian comedian
• Gustav Lechner (1913–1987), Croatian footballer
• Harald Lechner (born 1982), Austrian football referee
• Heinz Lechner (1928–2020), Austrian fencer
• Johnny Lechner, American actor
• Kerim Lechner (born 1989), Austrian musician
• Kurt Lechner (born 1942), German CDU politician
• Leonhard Lechner (1553–1606), German composer
• Matthias Lechner (born 1970), German set designer
• Maximilian Lechner (born 1990), Austrian pool player
• Natalie Bauer-Lechner (1858–1921), Austrian violist
• Patrick Lechner (born 1988), German cyclist
• Peter Lechner (born 1966), Austrian luger
• Ödön Lechner (1845–1914), Hungarian architect
• Otto Lechner (born 1964), Austrian accordionist
• Robert Lechner (born 1967), German cyclist
• Walter Lechner (1949–2020), Austrian racing driver

• Mount Lechner, Antarctica
• Lechner (windsurf board)