| Ihara Daisaku | University of Tsukuba | Professor Emeritus | Linguistics - 中国語歴史語法 |
| Yasui Izumi | University of Tsukuba | Professor Emeritus | Linguistics - |
| Yoshioka Hirohide | University of Tsukuba | Professor Emeritus | Linguistics - Cross Language Study of Laryngeal Adjustments in Running Speech. |
| Aizawa Keiichi | Faculty of Humanities and Social Sciences | Professor | Linguistics, European literature, Foreign language education - German Literature, Nationalism, Translatology |
| Aoki Saburo | Faculty of Humanities and Social Sciences | Provost | Linguistics, Linguistics - Cross linguistic research on French and Japanese langage, Francophony Study, Dialogue between civilisations, Global Negotiation, Research for Development in Japanese Language, Culture and Society, Global Issues |
| Aoyagi Etsuko | Faculty of Humanities and Social Sciences | Professor | Literature in general, Linguistics - Studies on the narrative discourse, Modern Literary Theory, Francophony Literature, Literature in Tunisia, Literature in Algeria, World Literature, 越境文学, Literature in General (including Literary Theory and Comparative Liter ature)and Western Classics, French Language and Literature |
| Ikeda Jun | Faculty of Humanities and Social Sciences | Professor | Linguistics, Library and information science/ Humanistic social informatics - Historical Linguistics, Descriptive Linguistics, Experimental Linguistics, Semitic Linguistics, Graphetics, Digital Humanities, Research Metrics |
| Ikeda Susumu | Faculty of Humanities and Social Sciences | Assistant Professor | Linguistics - 現代中国語文法 |
| Ishida Takeru | Faculty of Humanities and Social Sciences | Associate Professor | Linguistics, Japanese linguistics - 現代日本語文法, 統語論 |
| Ito Makoto | Faculty of Humanities and Social Sciences | Professor | Linguistics, Linguistics, Linguistics - Deutsche Wortbildung, Deutsche Phraseologie, Deutsche Lexikologie, kontrastive Linguistik, Deutsch-Japanisch im Kontrast |
