- Puttler, B
- Puttock, C F
- Puttock, M J
- Putz, Francis E
- Pütz, Norbert
- Putzeys, G
- Putzeys, J
- Putzeys, Jules Antoine Adolphe Henri, 1809-1882
- Putzeys, M J
- Putzke, Jair
- Putzys, G.,
- Puvis, Marc Antoine, 1776-1851
- Puy, J Du
- Puyallup Iris Gardens.
- Puyallup Nurseries.
- Puyallup Nursery.
- Puyallup Yakima Nurseries.
- Puyana, Mónica
- Puydt, Émile de, 1810-1891
- Puyjalon, H. de, 1839-1905
- Puylaert, F A
- Puylaert, Firmin
- Puyo, R
- Puyravaud, Jean-Philippe
- Puyto, Aleksandra
- Puzzi, Cesare Mario
- Pyare, Sanjay
- Pybum, W F
- Pyburn, George, 1831-
- Pyburn, W F
- Pybus, Margaret Jean.
- Pychaft, W P
- Pycraft, W. P.
- Pycraft, W. P. (William Plane), 1868-1942
- Pycrapt, W P
- Py-Daniel, Lúcia Helena Rapp.
- Py-Daniel, Victor.
- Pye, F C
- Pye, H.
- Pye, Michelle
- Pyeatt, Lyle
- Pyenson, L
- Pyenson, Louis
- Pye-Smith Philip Henry, 1840-1914
- Pykälä, Juha
- Pyke, David A.
- Pyle, Angie
- Pyle, Harry L.
- Pyle, Katharine, 1938
- Pyle, Leilani.
- Pyle, P
- Pyle, Peter
- Pyle, Richard
- Pyle, Richard L
- Pyle, Robert L.
- Pyle, Robert L. (Robert Lawrence), 1923-
- Pyle, Robert Michael
- Pyle, Robert W
- Pyle, Robert, 1877-
- Pyle, Robert, 1877-1951
- Pyle, Robert.
- Pyle, Walter L. (Walter Lytle), 1871-1921
- Pyle, William Henry
- Pyles, C
- Pyles, Marcela V
- Pyles, Mary.
- Pylina, Yana
- Pylro, Victor Satler
- Pylypec, Bohdan
- Pym, Tony
- Pyman, G A
- Pymatuning Gardens.
- Pymatuning Laboratory of Field Biology.
- Pyne, Alexander
- Pyne, Milo
- Pyne, Stephen J
- Pynes, Patrick
- Pynn, L M
- Pyper, Stewart
- Pyrah, Duane B.
- Pyrcz, Tomasz
- Pyrcz, Tomasz W
- Pyron, Alex
- Pyron, Mark, 1960-
- Pyron, R Alexander
- Pyron, Robert
- Pyron, Robert Alexander
- Pyšek, Petr
- Pyshora, Leo.
- Pyšková, Klára
- Pytel, Angie
- Pyzhjanov, Sergey