Koechlin is a Swiss-German and Alsatian surname. It may refer to:
Persons Alphons Koechlin (1821–1893), Swiss politician and President of the Swiss Council of States (1874/1875) André Koechlin (1789–1875), French industrialist and the railroad equipment maker Charles Koechlin (1867-1950), French composer Éric Koechlin (1950-2014), French slalom canoer Jean Koechlin (born 1926), French botanist Jorge Koechlin (born 1950), Peruvian racing driver and magazine publisher Kalki Koechlin (born 1984) French actress Maurice Koechlin (1856–1946), French structural engineer Pedro Koechlin von Stein, Peruvian politician and entrepreneur Rudolf Koechlin (1862–1939), Austrian mineralogist
See also Koechlin family, an Alsatian family Koechlin Island, an island off the northeast coast of Adelaide Island, Antarctica