Pierre De Geyter
| Pierre Chrétien De Geyter | |
|---|---|
| Native name | Pierre Chrétien Degeyter | 
| Born | 8 October 1848 Ghent, Belgium | 
| Died | 26 September 1932 (aged 83) Saint-Denis, French Third Republic | 
| Language | French | 
| Nationality | French | 
| Literary movement | Socialism | 
Pierre Chrétien Degeyter (French: [pjɛʁ kʁetjɛ̃ də ɡetɛʁ], Flemish: [də ˈɣɛitər]; 8 October 1848 – 26 September 1932) was a Belgian-French socialist and a composer, known for writing the music of The Internationale.