Aleksandr Dmitrievich Dulichenko (alternatively Alexander Duličenko; Russian: Александр Дмитриевич Дуличенко) (born 1941)^[1] is a Russian-Estonian Esperantist, linguist, and an expert in Slavic microlanguages currently living in Estonia.^[1] He is a professor at the University of Tartu in Tartu, where he is the head of the department of Slavic studies.^[2]

This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages) You can help expand this article with text translated from the corresponding article in Russian. (November 2020) Click [show] for important translation instructions. 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:Дуличенко, Александр Дмитриевич]]; see its history for attribution. You should also add the template {{Translated|ru|Дуличенко, Александр Дмитриевич}} to the talk page. For more guidance, see Wikipedia:Translation. You can help expand this article with text translated from the corresponding article in Belarusian. (May 2023) Click [show] for important translation instructions. 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 Belarusian Wikipedia article at [[:be:Аляксандр Дзмітрыевіч Дулічэнка]]; see its history for attribution. You should also add the template {{Translated|be|Аляксандр Дзмітрыевіч Дулічэнка}} to the talk page. For more guidance, see Wikipedia:Translation.

Dulichenko was born in Krasnodar.^[1] He is the editor of Interlinguistica Tartuensis, a journal on interlinguistics published by the University of Tartu that published seven volumes from 1982 to 1990 recording the proceedings of colloquia at Tartu;^[3] in 2006, an eighth volume was published.^[4] A festschrift in Dulichenko's honor was organized in 2006;^[5] Humphrey Tonkin calls this volume a "particularly important addition to the literature" of interlinguistics and Esperanto studies.^[6]