- Tigerhjelm, Lars Gust,
- Tigerstedt, Robert, 1853-1923
- Tigga, Marcel
- Tighe Neira, Ricardo
- Tignor, Keith R.
- Tigny, F. Martin Grostête T. de, 1736-1799
- Tigrero Salas, Juan Oswaldo
- Tigreros, Paulo C.
- Tihelka, Erik
- Tihen, Joseph Anton, 1918-
- Tihen, Samuel S.
- Tiivel, D. J.
- Tíjaro Rojas, Rocío
- Tijerina Chávez, Leonardo
- Tijman, Brendon A.
- Tikader, B. K.
- Tikar, D. T.
- Tikasingh, Elisha S.
- Tikhonov, Valentin
- Tikkunen, Mari
- Tikoca, Siteri
- Tilak, Raj
- Tilbrooke, Richard D.
- Tilbury, Colin R., 1952-
- Tilbury, L.
- Tilbury, Mary Ruth
- Tilden & Co.
- Tilden, J W
- Tilden, James Wilson
- Tilden, Josephine E. (Josephine Elizabeth)
- Tilden, William A., Sir, (William Augustus), 1842-1926
- Tildesley, M.
- Tildesley, Paul C
- Tiler, Christine
- Tilesius von T., W. G. (Wilhelm Gottlieb Tilesius von Tilenau), 1769-1857
- Tilesius, A. von.
- Tilghman, Nancy G.
- Tilgner, Erich H
- Tilho, Jean, 1875-1956
- Till, B. F.
- Till, J. N.
- Till, Sheila.
- Till, W. M.
- Till, Walter, 1956-
- Tillack, Frank
- Tillaeus, Pehr Cornelius 1747-1827
- Till-Bottraud, Irène
- Tiller, Ruby Jarvis, 1888-
- Tillería, Jorge
- Tillery, George Q.
- Tilles, David A.
- Tillet, B. C.
- Tillet, Mathieu, 1714-1791
- Tillet, Mathieu, approximately 1720-1791
- Tillett, Stephen Szlatenyi
- Tilley, Larry J.
- Tilley, R. D. J.
- Tilley, R. J. D.
- Tilli, Michelangelo
- Tilliard, Hippolyte,
- Tillich, Hans-Jürgen
- Tillier, Annie
- Tillier, J.-B.
- Tillier, Simon
- Tilling.
- Tillinghas, A. G.
- Tillinghast Seed Co.
- Tillinghast, A. G.
- Tillinghast, Edward K
- Tillinghast, Frank N.,
- Tillinghast, Isaac F.
- Tillinghast, W. A.
- Tillinghast, William H. (William Hopkins), 1854-1913
- Tillman, Eric
- Tillman, Eric A.
- Tillman, Glynn
- Tillman, Samuel Dyer, 1815-1875
- Tillotson, C. R.
- Tillotson, Daniel F.
- Tillotson, Edwin Ward, Jr.
- Tillotson, I. J. L.
- Tillotson, L. J. L.
- Tilly, Chuck
- Tillyard, R. J. (Robin John), 1881-1937
- Tillyard, Robert John
- Tilmans, Jos
- Tilmon, K. J.
- Tilney, Frederick, 1875-1938
- Tilney, P M
- Tilney, Patricia M
- Tilson, Ida E.
- Tilson, Ronald L.
- Tilsons' Gladiolus Gardens.
- Tilt, J. C.
- Tiltman, H. Hessell 1897-
- Tilton, A.
- Tilton, Bernard E
- Tilton, E. N.
- Tilton, Emory N.
- Tilton, George Henry, 1845-
- Tilton, John Kent
- Tilyard, Paul
- Tim, S K-M
- Tim, Stephen K-M
- Timbal-Lagrave, Albert, 1849-1910
- Timbal-Lagrave, Édouard, 1819-1888
- Timber Research and Development Association.
- Timberlake, H. G.
- Timberlake, Jonathan
- Timberlake, P. H. (Philip Hunter), 1883-1981
- Timberland Gardens,
- Timbers, Tiffany A
- Timbrook, Jan
- Timbs, John, 1801-1875
- Tim-Chun, W. L.
- Timdal, Einar
- Timilsina, Nilesh
- Timiriazev, K. A. (Kliment Arkadevich), 1843-1920
- Timken, Richard L
- Timko, Patricia L
- Timm, Alicia
- Timm, Anika
- Timm, Brad C.
- Timm, Daniel E.
- Timm, Joachim Christian, 1734-1805
- Timm, Luisa
- Timm, R. W. (Richard W.)
- Timm, Robert M.
- Timm, Tarmo
- Timman, R. (Reinier), 1917-1975
- Timme, Richard C.
- Timme, Stephen L.
- Timmer, Jan
- Timmerman, H. R.
- Timmerman, Suzette
- Timmermann, Barbara N.
- Timmermann, David H.
- Timmermann, G.
- Timmermann, Kim
- Timmermann, Susanne
- Timmermans, John Gylbert, 1952-
- Timmers, H
- Timmins, Charles A.
- Timmins, R. J.
- Timmis, Reginald S. (Reginald Symonds), 1884-1968
- Timmons, F. L. (Francis Leonard), 1905-
- Timmons, Tom
- Timmons, Tom J.
- Timms, B. V.
- Timofeev, Vitaly
- Timofeev-Resovskiĭ, N. V. (Nikolaĭ Vladimirovich), 1900-1981
- Timokhov, Alexander
- Timoney, Kevin
- Timoshenko, Alexander F.
- Timossi, Irene C
- Timothy F. Sharbel, Timothy F.
- Timothy, J
- Timpano, P
- Tims, Henry William Marett, 1863-
- Tims, J. D.
- Tin, H. C.
- Tinajero, Romeo
- Tinant, Francois Auguste, 1803-1853
- Tinari Floral Gardens,
- Tinari Greenhouses,
- Tinaut, Alberto
- Tinbergen, Niko, 1907-1988
- Tinchant Jean Michel Nicolas.
- Tincher, Butch
- Tind, Kirsten
- Tindale
- Tindale, B.
- Tindale, M. D. (Mary D.)
- Tindale, Norman B. (Norman Barnett), 1900-1993
- Tindale, Norman L
- Tindall, B. J.
- Tindall, Donald R
- Tindall, Edward E
- Tindall, Eva.
- Tindall, H. D.
- Tindall, John
- Tindall, W. F.
- Tine, M. G.
- Tiné, Marco Aurélio Silva
- Tinelli, A
- Tinelli, Aleandro
- Tinelli, P
- Tineo, P.
- Tineo, Vincenzo
- Tiner, Ralph W.
- Tinerella, Paul P. (Paul Philip), 1972-
- Ting, A. P. J., S.Y. Wong & J. Jamliah
- Ting, Chew Ping
- Ting, Peter C.
- Ting, Su-Yin
- Ting, Tingting
- Ting, Y. C.
- Tinga, W.
- Tingay, Ruth E
- Tingey, R. J. (Robert John)
- Tingey, W. M.
- Tingle Nursery Company.
- Tingle, J. N. (James Nisbet), 1944-
- Tingley, Reid
- Tingley, Stuart I.
- Tingry, P. F. (Pierre François), 1743-1821
- Tini, Massimiliano
- Tiniakov, G. G.
- Tinker, A. D.
- Tinker, Spencer Wilkie
- Tinker, Stephen
- Tinkham, Ernest R.
- Tinkle, Donald W.
- Tinley, J. M. (James Maddison), 1897-1971
- Tinline, M. J.
- Tinline, Rowland R. 1940-
- Tinne, Alexandrina, P. F.
- Tinne, John A.
- Tinney, J.,
- Tinney, Richard T.
- Tinnin, David S.
- Tinnin, Robert.
- Tinoco, Herlandes Penha
- Tinoco, Moacir
- Tinoco, Natália A. B.
- Tinoco, Nicolas
- Tinsley Seed Co.
- Tinsley Seed Company.
- Tinsley, J. D.
- Tinsley, Joseph.
- Tinsley, R. C.
- Tinter, Wilhelm von, 1839-1912
- Tinti, Sirlene V.
- Tintino, Saulo R
- Tintori, Andrea
- Tinulele, Idris
- Tinus, Richard W.
- Tinworth, Bruce
- Tio, Martin
- Tione, María L.
- Tiong, George
- Tiotsop, Francois
- Tioughnioga Valley Seed Gardens.
- Tipan, Luis A
- Tiphaigne de La Roche, Charles-François
- Tiphernas, Angelus,
- Tiplady, B. Ann
- Tiple, Ashish D.
- Tipografia del Seminario di Padova.
- Tipper, C. J. R.