Konstanty may refer to:
given name:
* Konstanty Adam Czartoryski (1777–1866), Polish prince, Brigadier General
* Konstanty Andrzej Kulka (born 1947), Polish violinist, recording artist, and professor
* Konstanty Borzęcki (1826–1876), participant in Polish and Ottoman uprisings, known as Mustafa Celalettin Pasha
* Konstanty Brandel (1880–1970), Polish painter, notable contributor to the Young Poland movement
* Konstanty Branicki (1824–1884), Polish collector and naturalist who established a private museum of natural history
* Konstanty Budkiewicz (1867-1923), Roman Catholic priest executed by the OGPU for organizing Nonviolent resistance against the First Soviet anti-religious campaign
* Konstanty Ciołkowski (1857–1935), Soviet with Polish origin rocket scientist who pioneered astronautic theory
* Konstanty Dombrowicz (born 1947), Polish journalist, politician and President of Bydgoszcz
* Konstanty Gebert (born 1953), Polish-Jewish journalist and activist
* Konstanty Gorski (1859–1924), Polish composer, violinist, organist
* Konstanty Górski (1868–1934), Polish painter and illustrator
* Konstanty Hrynakowski (1878–1938), Polish chemist
* Konstanty Ildefons Gałczyński (1905–1953), Polish poet
* Konstanty Jacek Lubomirski (1620–1663), Polish prince
* Konstanty Jeleński (1922-1987), Polish essayist
* Konstanty Jelski (1837–1896), Polish ornithologist and zoologist who explored French Guiana
* Konstanty Jodko-Narkiewicz (1901–1963), Polish geophysicist who specialized in studying cosmic radiation
* Konstanty Kaiszauri (born 1952), Poland born Swedish chess International Master
* Konstanty Kalinowski (1838–1864), Polish-Belarusian writer, journalist, lawyer and revolutionary
* Konstanty Kapuścik (dead 1943), member of the Gestapo killed by a partisan death squad, known as Helmut Kapp
* Konstanty Kazimierz Brzostowski (1644–1722), Polish noble, count of the Holy See, and papal prelate
* Konstanty Kurnatowski (1878-1968), bishop
* Konstanty Korniakt (1517–1603), Polish merchant of Greek descent
* Konstanty Korniakt of Białobok (1582-1624), Polish nobleman and soldier
* Konstanty Laszczka (1865–1956), Polish sculptor, painter, professor and rector of the Jan Matejko Academy of Fine Arts in Kraków
* Konstanty Ludwik Plater (1722–1778), Polish noble, Castellan and voivode
* Konstanty Mackiewicz (1894–1985), Polish painter
* Konstanty Majeranowski (1787–1851), Polish journalist, poet
* Konstanty Maria Sopoćko (1903-1992), Polish artist, specializing in woodcutting
* Konstanty Miodowicz (1951–2013), Polish politician
* Konstanty Ostrogski (1460-1530), Grand Hetman of Lithuania
* Konstanty Plisowski (1890–1940), Polish general and military commander
* Konstanty Pociejkewicz (1932–2003), Polish speedway rider
* Konstanty Radziwiłł (born 1958), Polish politician, physician
* Konstanty Rokicki (1899–1958), Polish consular officer, Righteous Among the Nations
* Konstanty Rokossowski (1896–1968), Soviet and Polish officer, Marshal of the Soviet Union of Poland
* Konstanty Szyrwid (1579–1631), religious preacher, lexicographer and one of the pioneers of Lithuanian literature
* Konstanty Skirmunt (1866–1949), Polish politician
* Konstanty Troczyński (1906-1942), Polish literature theoretician and critic, murdered in the German concentration camp Auschwitz
* Konstanty Tyszkiewicz (1806–1868), Polish-Lithuanian noble, archaeologist and ethnographer
* Konstanty Tyzenhauz (1786–1853), Polish-Lithuanian nobleman, naturalist, artist, and sponsor of ornithology
* Konstanty Wasyl Ostrogski (1526-1608), prince, Ruthenian Orthodox magnate of the Polish–Lithuanian Commonwealth
* Konstanty Wileński (born 1949), Polish-Ukrainian pianist, composer and jazz musician
* Konstanty Wiśniowiecki (1564–1641), Polish nobleman, voivode of Belz
* Konstanty Władysław Sobieski (1680–28 February 1726), Polish prince, son of John III Sobieski
* Konstanty Zakrzewski (1876–1948), Polish physicist
* Konstanty Zamoyski (1799-1866), Polish nobleman
** Konstanty Zamoyski Palace
second given name:
* Gustaw Konstanty Orlicz-Dreszer (1889−1936), Polish general, political and social activist
* Jerzy Konstanty Broel-Plater (1810–1836), bibliographer and researcher of the Lithuanian language and literature
* Jerzy Konstanty Czartoryski (1828–1912), Polish noble and politician
* Józef Olszyna-Wilczyński, Józef Konstanty Olszyna-Wilczyński (1890–1939), Polish general
* Juliusz Konstanty Ordon (1810-1887), participant of the Polish November Uprising
* Mikalojus Konstantinas Čiurlionis, Mikołaj Konstanty Czurlanis (1875–1911), Lithuanian painter, composer and writer
* Teodor Konstanty Lubomirski (1683–1745), Polish prince
* Władysław Konstanty Vasa, Count of Wasenau (1635–1698), illegitimate son of Władysław IV Vasa
last name:
* Jim Konstanty (1917-1976), American professional baseball player
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