Alfredo Keil
| Alfredo Keil | |
|---|---|
| Born | 3 July 1850 | 
| Died | 4 October 1907 (aged 57) | 
| Occupation(s) | Composer, painter and poet | 
| Known for | Composer of the Portuguese national anthem | 
| Signature | |
Alfredo Cristiano Keil (3 July 1850 – 4 October 1907) was a Portuguese composer, painter, poet, archaeologist and art collector. Keil is best known as the composer of the Portuguese national anthem, A Portuguesa.