Mulder is a surname of two possible origins: Dutch and German.
It may be Dutch language occupational surname. It is an archaic Dutch word for "miller" (modern Dutch: molenaar). With 38,207 people in the Netherlands named Mulder, it was the 12th most common name there in 2007.[1] In Belgium the form De Mulder ("the miller") is more common.[2]
The surname Mulder is also an occupational name of German origin, meaning "the maker of wooden bowls", from Middle High German mulde "bowl", "trough", or "tub" + the agent suffix -er.
Notable people with this name include: