Pavel Grigoryevich Demidov (Russian: Павел Григорьевич Демидов; 1738–1821) was a Russian traveller and patron of scientific education. He was from the Demidov family.

You can help expand this article with text translated from the corresponding article in Russian. (February 2009) Click [show] for important translation instructions. View a machine-translated version of the Russian article. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing Russian Wikipedia article at [[:ru:Демидов, Павел Григорьевич]]; see its history for attribution. You may also add the template {{Translated|ru|Демидов, Павел Григорьевич}} to the talk page. For more guidance, see Wikipedia:Translation.

A grandson of Nikita Demidov, he created the mineralogical museum in Moscow in 1775. (now known as the Vernadsky State Geological Museum or the Museum of Earth History),^[1] in 1803 the Demidov Lyceum at Yaroslavl, and in 1805 the Demidov Scientific Institute at Saint Petersburg. He was also the founder of the university of Tobolsk, Moscow's Botanical Gardens (the Neskuchny Gardens), the Demidov chair in Natural history at Moscow University and an annual prize for Russian literature, awarded by the Academy of Sciences. In total, he gave 1.1 million roubles to scientific institutions. The bronze Demidovsky Pillar was set up as a memorial to him at Yaroslavl in 1828.