Maximilian Friedrich Wilhelm Quedenfeldt (13 June 1851 – 18 September 1891) was a German explorer, army officer, collector, ethnographer, and naturalist.
Like his father Friedrich Otto Gustav Quedenfeldt, he too had a special interest in insects and collected specimens from around the world.
Quendenfeldt was born in Großglogau in Silesia, the son of Major General Friedrich Otto Gustav Quedenfeldt and Luise Wilhelmine Amalie (1823–1896), née Meißner.
He trained at the military academy in Liegnitz and joined the corps in 1866 and moved to the 7 Dragoon regiment in 1870.
He travelled to Hungary, Serbia and Bosnia from 1878 and spent time in Spain, Portugal and Morocco in 1880.