Estonian family name

Annus is an Estonian language meaning "dose", or "batch".

As of 1 January 2021, 219 men and 251 in Estonia have the surname Annus. Annus is ranked the 251st most common surname for men in Estonia and 237th for women. The surname Annus is most common in Lääne-Viru County, where 6.81 per 10,000 inhabitants of the county bear the surname.

Notable people bearing the surname Annus include: