Peter Nielsen may refer to:
- Peter Nielsen (botanist) (1829-1897), Danish botanist, mycologist and plant pathologist
- Peter Nielsen (footballer) (born 1968), Danish footballer
- Peter Meinert Nielsen (.born 1966), Danish road bicycle racer
- Peter Nielsen, air traffic controller for Bashkirian Airlines Flight 2937, murdered by Vitaly Kaloyev
- Peter Nielsen, contestant on series four of The Apprentice (Irish TV series)
Famous quotes containing the word peter:
“Trust everybody, but cut the cards.”
—Finley Peter Dunne (1867–1936)