- Nopcsa, Ferencz báró 1877-1933
- Nopper, Joachim
- Nopporncharoenkul, Nattapon
- Noqueira, Marcelo Diógenes Costa
- Nor, S M
- Nor, Siti Azizah Mohd
- Norambuena, Heraldo V.
- Norambuena, M. Cecilia
- Norbeck Nurseries.
- Norbert, Florian
- Norbis, Walter
- Norbu, Tshewang
- Norbury, G L
- Norcliffe, Charles Best.
- Norcross, H. L.
- Norcross, Nancy L
- Nord, Eamor C.
- Nord, J C
- Nord, John C.
- Nordal, I
- Nordal, Inger 1943-
- Nordan'S Grass Farms,
- Nordby, Christopher S.
- Norden, A W
- Norden, B
- Norden, B B
- Norden, Beth B
- Nordenholt, George Fred, 1892-
- Nordenskiöld, A. E. (Adolf Erik), 1832-1901
- Nordenskiöld, Erik, 1872-1933
- Nordenskjöld, Otto, 1869-1928
- Nordenstam, Bertil
- Nordenstam, R B
- Nordgaard, O. (Ole), 1862-1931
- Nordhoff, Charles, 1830-1901
- Nordhoff, Charles, 1887-1947
- Nordhoff, Evelyn Hunter
- Nordi, Cristina Souza Freire
- Nordi, N.
- Nordi, Nivaldo
- Nordin, Anders
- Nordin, Carl F., Jr.
- Nordin, Gerald L.
- Nordin, J. Green, 1880-
- Nordin, John S
- Nordin, Jonas
- Nordlander, Göran
- Nördlinger, Hermann von, 1818-1897
- Nordmann, Alexander von, 1803-1866
- Nordmeyer, D L
- Nordqvist, Oscar, 1858-1925
- Nordsieck, Hartmut
- Nordsieck, Hartmut.
- Nordstedt, Carl Peter Ulrik, 1793-1854
- Nordstrom Nurseries.
- Nordstrom Nursery Co.
- Nordstrom, And. Jac.
- Nordstrom, Charles E.
- Nordström, Johan, 1891-1967
- Nordstrom, R. J.
- Nordstrom, Wayne.
- Nordvig, K
- Nordwall, Cr,
- Nordyke, Kirk A.
- Noreika, R
- Noreika, Remigijus
- Norekian, T P
- Norell, Mark A.
- Norén, Michael
- Noreña, Carolina
- Noreña-Rivera, Enrique Israel
- Norenburg, J L
- Norenburg, Jon
- Norene M. Kolb (Firm),
- Nores, Ana I
- Nores, Carlos
- Nores, Manuel
- Noret, Nausicaa
- Noréus, Jean, 1769-1814
- Nor-Ezzawanis, A T
- Norfolk & Norwich Library,
- Norfolk (Va.) Commission on Beautifying the City.
- Norfolk Agricultural Society.
- Norfolk and Norwich Naturalists' Society.
- Norfolk Bird Club.
- Norfolk, Joannes.
- Norford, B S
- Norford, Brian S
- Nørgaard, Thomas
- Nörgaard, Victor A. (Victor Andreas), 1868-
- Norgren, A
- Norguet, Anatole de Madre de, 1823-1898
- Norhazrina, Nik
- Noriega Alvarado, Jorge Ari
- Noriega, Carlos
- Noriega, Carlos E
- Noriega, Jorge Ari
- Noriega, Jorge Ignacio.
- Noriega, Juan Manuel
- Noriega, Juan Manuel 1869-1858
- Noriega, Nicida
- Norin, Net
- Norland, A
- Norlindh, T
- Norlindh, Tycho
- Norling, Bradley S
- Norlund, C M
- Norman and Skeen,
- Norman D. Keefer (Firm)
- Norman D. Keefer (Firm).
- Norman E. Tully (Firm)
- Norman Nursery and Flower Shop.
- Norman, Alfred Merle, 1831-1918
- Norman, Anita J.
- Norman, C P And Jones
- Norman, Canon
- Norman, Canon A M
- Norman, D B
- Norman, David
- Norman, David B
- Norman, E P
- Norman, Eliane M
- Norman, Ernest S.
- Norman, F I
- Norman, Frederick W.
- Norman, G C
- Norman, George
- Norman, Harry, 1859-
- Norman, Henry
- Norman, J M
- Norman, J. L.
- Norman, J. M. (Johannes Musaeus), 1823-1903
- Norman, J. R. (John Roxborough), 1898-1944
- Norman, James
- Norman, James L
- Norman, Janette A
- Norman, Janette Ann
- Norman, Johannes Musaeus
- Norman, Julie
- Norman, Karma
- Norman, M D
- Norman, Mark D
- Norman, Melanie
- Norman, Mitchell D
- Norman, R.
- Norman, Robert, fl 1590-
- Norman, Stuart
- Norman, T
- Normand, D
- Normand, Didier
- Normand, H
- Normand, J. L.
- Normand, N. A. J.
- Normandeau Associates.
- Normando, Felipe Talin
- Norman's Nurseries.
- Normant-Saremba, Monika
- Norman-Wilcox, Gregor
- Normark, Ben
- Normark, Benjamin
- Normark, Roxanna
- Norment, B R
- Norment, Christopher J.
- Norng, K
- Noro, Clarissa K.
- Noro, Clarissa Köhler
- Noronha dos Santos, Jamile Inácio
- Noronha, Adolfo Cesar Di
- Noronha, Aloyséia C. da S.
- Noronha, Aloyséia Cristina da Silva
- Noronha, D.
- Noronha, Dely
- Noronha, Janaina Da Costa De
- Noronha, Maurício de Almeida.
- Noronha, R P
- Noronha, Renata
- Noroozi, Jalil
- Norphanphoun, Chada
- Norquay, Paul
- Norrbom, Allen
- Norrdahl, Kai
- Norren, Ellen van
- Norrey, John
- Norrington, S F
- Norris, A. W. (Arnold Willy),
- Norris, Andrea R
- Norris, Andrew
- Norris, C E
- Norris, Christopher A.
- Norris, Christopher A., 1966-
- Norris, D. Ryan
- Norris, Daniel H
- Norris, Darren
- Norris, Fiona
- Norris, Frank,
- Norris, G E
- Norris, G W
- Norris, Geoffrey.
- Norris, Harry Waldo, 1862-
- Norris, Hugh L., 1863-1942
- Norris, J
- Norris, J N
- Norris, J. Parker (Joseph Parker), 1871-1931
- Norris, James N.
- Norris, Joscelyn
- Norris, Joseph Parker, 1847-1916
- Norris, K C
- Norris, K R
- Norris, Ken
- Norris, Kenneth R
- Norris, Kenneth S. (Kenneth Stafford)
- Norris, L. A.
- Norris, R E
- Norris, Richard D
- Norris, Richard E
- Norris, Richard E.
- Norris, Robert A
- Norris, Robert F.
- Norris, Russell T
- Norris, Russell Taplin.
- Norris, Ryan W.
- Norris, S M
- Norris, Steven
- Norris, Thaddeus, 1811-1877
- Norris, W E
- Norris, William.
- Norris-Caneda, K H
- Norris-Elye, L. T. S.
- Norrish, K
- Norriss, J
- Norriss, J V
- Norriss, Jeffrey V
- Norrmann, Guillermo A
- Norrmann, Guillermo A
- Norrmann, Guillermo A.
- Norse, Elliott A
- Norske Nordhavs-expedition 1876-1878
- Norske videnskaps-akademi i Oslo.
- Nort, Robert C
- Nortcliff, Stephen
- North Acre Gardens.
- North American Fisheries Conference Washington, D.C.) 1965-
- North American Hunting Club.
- North American Mycological Association.
- North American Native Terrestrial Orchid Conference Washington, D.C.) 1996-
- North American Pomological Convention.
- North American Symposium On Wolves Edmonton, Alta.) 1992-
- North American Water Fowl Management Plan.
- North American Workshop on Monitoring for Ecological Assessment of Terrestrial and Aquatic Ecosystems Mexico City, Mexico) 1995-
- North Atlantic Submarine Canyons Workshop Vienna, Va.) 1989-