Maurice Koechlin (March 8, 1856 - January 14, 1946) was a French structural engineer.

Born Buhl, Haut-Rhin , he studied at the lycée in Mulhouse then at the Swiss Federal Institute of Technology under Carl Culmann.

Much of his work was in the service of Gustave Eiffel and his major structural designs were:

• Garabit viaduct, (1880-1884);
• Armature for the Statue of Liberty - in collaboration with Frédéric Bartholdi, (1884); and
• Eiffel Tower, (1887-1889).

Married to Emma Rossier in 1886, they had six children. He died in Veytaux, Switzerland.

He was an officer of the Légion d'honneur.