People
Given name
* Atto Melani (born 1626–1714), Italian opera singer * Atto Mensah (born 1964), Sierra Leonean football player and coach * Adalbert Atto of Canossa (died 988), Count of Canossa * Atto (archbishop of Milan) (11th century) * Atto (bishop of Vic) (died 971) * Atto of Pistoia (1070–1153), Italian prelate * Atto of Spoleto (7th century), Duke of Spoleto * Atto of Vercelli (885–961), bishop of Vercelli * Atto Tigri (born 1813–1875), Italian anatomistSurname
* Osman Ali Atto (1940–2013), Somali warlordOther uses
* Amazon Tall Tower Observatory, a scientific research facility in the Amazon rainforest of Brazil *See also
* Antto (disambiguation) {{disambiguation, hndis, surname