| Age | 61 (age at death) |
| Birthday | 10 October, 1757 |
| Birthplace | Gävle, Sweden |
| Died | 14 August, 1819 |
| Place of Death | Vadstena, Sweden |
| Zodiac Sign | Libra |
| Nationality | Swedish |
| Occupation | Doctor |
Erik Acharius (10 October 1757 – 14 August 1819) was a Swedish botanist who pioneered the taxonomy of lichens and is known as the "father of lichenology." Acharius was famously the last pupil of Carl Linnaeus.
