Structuralism
The structuralist movement in French philosophy was highly influenced by the Swiss thinker Ferdinand de Saussure (1857–1913). His ideas laid the foundation for many of the significant developments in linguistics in the 20th century. He is widely considered the 'father' of 20th-century linguistics.
Jacques Lacan (1901–1981) was specifically interested in the philosophy of psychoanalysis. He could be said to be relevant to the more modern foundations of discursive psychology.
Read more about this topic: 20th-century French Philosophy