Pierre Fatou
| Pierre Fatou | |
|---|---|
| Born | 28 February 1878 Lorient, France | 
| Died | 9 August 1929 (aged 51) Pornichet, France | 
| Alma mater | École Normale Supérieure | 
| Known for | |
| Scientific career | |
| Fields | Mathematics | 
| Institutions | Paris Observatory | 
| Doctoral advisor | Paul Painlevé | 
Pierre Joseph Louis Fatou (28 February 1878 – 9 August 1929) was a French mathematician and astronomer. He is known for major contributions to several branches of analysis. The Fatou lemma and the Fatou set are named after him.