Adolph Giesl-Gieslingen (7 September 1903 – 11 February 1992) was an Austrian locomotive designer and engineer.
Giesl-Gieslingen was born in 1903 in Trient, Tirol, and studied at the Technical College in Vienna. In 1924 he published a technical article on smokebox design and chimneys.[1] In 1925 he received his diploma as an engineer, and began working as a design engineer at the Floridsdorf locomotive works,[1] where he was involved in the construction of the Class 214 2-8-4s. While at Floridorf he continued his studies, being interested in developing the rectangular chimney design developed by Golsdorf in Austria, and finished his doctoral thesis on locomotive front-end design in 1929.