Frantz Clemens Stephan Weller (17 May 1838, Neustadt - 17 July 1900, Copenhagen) was a German-born Danish photographer.
He Initially worked for the photographer, Georg Emil Hansen, pasting and binding photographs, but apparently studied photography as well, as a letter from the poet, Nicolai Bøgh [da] to Hans Christian Andersen, from 1866, mentions a "certificate" for Weller.
That same year, they received a Royal warrant of appointment, making them the official court photographers.
In addition to the Royal appointment, Georg had built up a solid base of customers in the House of Glücksburg and the associated bourgeoisie.
Approximately 660 of them, depicting members of the Danish and foreign nobilities, was acquired by the photographer, Peter Elfelt, and may now be seen at the Royal Library.