- Grice, George D.
- Grichanov, Igor
- Gridelli, Edoardo 1895-1958
- Gridley, Kate.
- Grieb, Richard, 1868-
- Griebel, Julius
- Griebeler, Ana Gláucia
- Griebenow, Zachary
- Grieg, James A. (James Alexandersøn), 1861-1936
- Griem, Karl.
- Grier Brothers.
- Grier, Charles C
- Grier, Douglas A.
- Grier, Harry J.
- Grier, James W.
- Grier, Joyce C.
- Grier, Norman McDowell 1890-1951
- Grier, Thomas Graham, 1865-
- Grierson, George Abraham
- Grierson, James D.
- Gries, Gerhard
- Gries, John M.
- Gries, Regine
- Griesa Nurseries.
- Griesa, A. G.
- Griesa, A. H.
- Griesa, A.H.
- Griesa, T. E.
- Griesbach, Carl Ludolph, 1847-1907
- Griesbaum , Frederic
- Griesel, Welsey O.
- Griesemer, J. W.
- Griesemer, Sara J.
- Griesheim, Adolf von.
- Grieshuber, Josef
- Griesinger, Wilhelm
- Griesselich, Ludwig, 1804-1848
- Griessen, F
- Griessinger, Jean-Michel
- Grieve, Andrew
- Grieve, Brian John 1907-1997
- Grieve, Evelyn George
- Grieve, Maude (Sophia Emma Magdalene Law), 1858-1941
- Grieve, Symington
- Grieves, Leanne A.
- Griffa, Sabrina
- Griffin, A R
- Griffin, Achille
- Griffin, B. J.
- Griffin, Curtice R
- Griffin, D K
- Griffin, Dana III
- Griffin, David Michael 1929-
- Griffin, Delia Isabel, 1868-1949
- Griffin, Dennis
- Griffin, Desmond John Gerald
- Griffin, Donald R. (Donald Redfield), 1915-
- Griffin, Donald R. (Donald Redfield), 1915-2003
- Griffin, Edward Arnold
- Griffin, Edward Lawrence, 1889-
- Griffin, Emily
- Griffin, Eryn
- Griffin, Frederick J.
- Griffin, G F
- Griffin, Gerald, 1803-1840
- Griffin, Graham
- Griffin, Jack G., 1920-
- Griffin, Jack G., 1970-
- Griffin, James R.
- Griffin, Jason J.
- Griffin, Jasper
- Griffin, John
- Griffin, K
- Griffin, Kathleen A.
- Griffin, L. T. (Louis Thomas)
- Griffin, Lawrence Edmonds, 1874-1949
- Griffin, Margaret,
- Griffin, Mary M.,
- Griffin, Miguel
- Griffin, O. B.
- Griffin, Owen M.
- Griffin, Pamela
- Griffin, Paul Adolph.
- Griffin, Philip
- Griffin, Sandra L.
- Griffin, William L
- Griffin, William, fl 1758-1776
- Griffing & Bradley.
- Griffing & Co.
- Griffing Bros. Co.
- Griffing Brothers (Port Arthur, Tex.)
- Griffing Brothers Co.
- Griffing Brothers Company.
- Griffing Brothers.
- Griffing Landscape Company.
- Griffing Nurseries.
- Griffing, J. S.
- Griffing, W. C.
- Griffing, W. D.
- Griffing's Delta Nurseries.
- Griffing's Grand Bay Nurseries.
- Griffing's Nurseries.
- Griffing's Semi-Tropic Nurseries.
- Griffini, Achille
- Griffini, Miguel
- Griffin's Pansy Gardens.
- Griffith and Turner Company.
- Griffith, Mrs.,
- Griffith, A. F.
- Griffith, A. L.,
- Griffith, D
- Griffith, Donee
- Griffith, Douglas M.
- Griffith, Edgardo J.
- Griffith, Edward, 1790-1858
- Griffith, Eugene,
- Griffith, F. (Frederick), 1879-1941
- Griffith, Fleda
- Griffith, Frederic Richardson,
- Griffith, Gareth
- Griffith, George W
- Griffith, Gwyn
- Griffith, Heather M
- Griffith, Horace
- Griffith, Hugh
- Griffith, J S
- Griffith, J. E. (Joanna Elizabeth)
- Griffith, J. E. (Ornithologist)
- Griffith, J. P. Crozer (John Price Crozer), 1856-1941
- Griffith, J. W. (John William)
- Griffith, James L
- Griffith, Jane K.
- Griffith, John
- Griffith, Kierstin
- Griffith, M. Patrick
- Griffith, Melvin E.
- Griffith, Michael B.
- Griffith, Moses, 1747-1819
- Griffith, R. B.
- Griffith, R. Eglesfeld (Robert Eglesfeld), 1798-1850
- Griffith, Ralph T H
- Griffith, Richard C.
- Griffith, Richard John, Sir, 1784-1878
- Griffith, Richard M.
- Griffith, Robert W
- Griffith, Roger B.
- Griffith, S J
- Griffith, Sandra
- Griffith, Scott A
- Griffith, William, 1810-1845
- Griffith, William.
- Griffiths, A. B. (Arthur Bower), 1859-
- Griffiths, Ali
- Griffiths, Anita N.
- Griffiths, Anthony D.
- Griffiths, Austin, 1922-
- Griffiths, B. Millard
- Griffiths, Carole S.
- Griffiths, Carolyn.
- Griffiths, Charles L. (Charles Llewellyn)
- Griffiths, D. A. (Donald Alister)
- Griffiths, David
- Griffiths, David, 1867-1935
- Griffiths, Deirdre E. 1939-
- Griffiths, Denis, Captain.
- Griffiths, E
- Griffiths, George Samuel
- Griffiths, Graham C. D.
- Griffiths, Henry J.
- Griffiths, Huw
- Griffiths, James T
- Griffiths, James W
- Griffiths, John Alfred
- Griffiths, Kevn, 1928-
- Griffiths, Mervyn
- Griffiths, Mike
- Griffiths, Owen Lee
- Griffiths, Paul E
- Griffiths, Roberta J.
- Griffiths, Thomas Alan
- Griffiths, W M
- Griffiths, W.
- Griffiths, W. Handsel (William Handsel), 1846-1877
- Griffiths, William, groom
- Griffitts, T. H. D. (Thomas Houston Dow), 1878-1953
- Griffo, James V
- Griffon, Édouard 1869-1912
- Griffond, Bernadette
- Grifi, Meriem D.
- Grifing, Walter C.
- Grigal, D. F., 1941-
- Grigarick, Albert A.
- Grigat, Gerald A. (Gerald Anton), 1955-
- Grigera, Dora
- Grigg, Alasdair
- Grigg, Anne-Lisa
- Grigg, F J T
- Grigg, F W
- Grigg, Gordon C. (Gordon Clifford)
- Grigg, Henry Bidewell.
- Grigg, Richard W
- Griggio, Matteo
- Griggs, Dave
- Griggs, G. A.
- Griggs, Margene May, 1947-
- Griggs, Robert F. (Robert Fiske), 1881-1962
- Griggs, William David.
- Griggs, William H. (William Holland), 1916-2008
- Griggs, William, 1832-1911
- Grigione, Melissa M.
- Grignan, G.
- Grignion, Charles, 1721-1810
- Grignon, W. (Wilfrid), 1854-1915
- Grigor, John.
- Grigoraki, Léon
- Grigorescu, Dan
- Grigorescu, Ines
- Grigor'eva, Tat'iana
- Grigorov, Borislav
- Grijalba, Pablo E.
- Grijalba-Bendeck, Marcela
- Grijalva Pineda, Alfredo
- Grijalva, Ana Eugenia Aguilar
- Grijalva-Chon, José Manuel
- Grill, Claes
- Grillas, Patrick
- Grillet, Arnaud
- Grillet, Maria
- Grillet, María-Eugenia
- Grillet, Pierre
- Grilli, Federica
- Grilli, Gabriel
- Grilli, Mariano
- Grilli, Mariano P
- Grillitsch, B
- Grillitsch, Britta
- Grillitsch, Heinz
- Grillitsch, Martin
- Grillo, H V S
- Grillo, Hamilton C. Z.
- Grillo, Hamilton César Zanardi
- Grillo, Hamilton Cézar Z.
- Grillo, Heitor Vinícius da Silveira, 1902-1971
- Grillo, Horacio
- Grillo, Marco
- Grillo, N.
- Grillo, Orlando Nelson
- Grillot, Maria Cláudia Guimarães
- Grilo, Clara
- Grim, J. Norman