Atto may refer to:
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 anatomist
Surname
Osman Ali Atto (1940–2013), Somali warlord
Other uses
Amazon Tall Tower Observatory, a scientific research facility in the Amazon rainforest of Brazil atto-, the metric prefix denoting a factor of 10 ATTO Technology, a computer electronics manufacturer Atto I, 1975 album by Al Bano and Romina Power BYD Atto 3, an electric car
See also
Antto (disambiguation)