| Age | 73 (age at death) |
| Birthday | 22 January, 1899 |
| Died | 1973 |
| Zodiac Sign | Aquarius |
| Nationality | Finnish |
| Occupation | Writer |
Martti Henrikki Haavio (22 January 1899 – 4 February 1973) was a Finnish poet, folklorist and mythologist, writing poetry under the pen name P. Mustapää. He was born on 22 January 1899 in Temmes, and died 4 February 1973 in Helsinki. He was also a professor of folklore and an influential researcher of Finnish mythology. In 1960, Haavio married Aale Tynni, after his first wife died in 1951 of cancer. His daughter, Elina Haavio-Mannila, is a social scientist. During Haavio's early career, he was a member of the Tulenkantajat literature club.
