Filipp Fortunatov
| Filipp Fyodorovich Fortunatov | |
|---|---|
| Born | 14 January 1848 | 
| Died | 3 October 1914 (aged 66) Kosalma, Russian Empire | 
| Burial place | Kosalma, Russian Empire 62°1′12″N 34°7′12″E / 62.02000°N 34.12000°E | 
| Nationality | Russian | 
| Alma mater | Imperial Moscow University | 
| Occupation | Philologist | 
| Employer(s) | Imperial Moscow University St. Petersburg Academy of Sciences | 
| Organization | Moscow linguistic circle | 
| Known for | |
| Spouse | Yulia Ivanovna | 
Filipp Fyodorovich Fortunatov (Russian: Фили́пп Фёдорович Фортуна́тов; 14 January [O.S. 2 January] 1848 – 3 October [O.S. 20 September] 1914) was a Russian philologist, Indo-Europeanist and Slavist, best known for establishing the Fortunatov–de Saussure law.