Friedrich August Stüler (28 January 1800 – 18 March 1865) was an influential Prussian architect and builder.
Stüler then returned to Berlin, where King Frederick William IV of Prussia opened a huge array of tasks to him, making him Architekt des Königs (Royal architect) in 1842.
After the death of Ludwig Persius, Stüler assumed control of the building of the Friedenskirche in Potsdam in 1845.
Joint journeys to Italy of Stüler and King Frederick William in 1858–59 deepened the Italian influence from medieval and Quattrocento buildings.
His ideas for Cast-iron architecture or the techniques he used for the Neues Museum are more likely influenced from a journey to England in 1842.