Terna may refer to:

Places

• Terňa, a village in the Prešov Region of Slovakia
• Terna River, Latur District, Maharashtra, India

Religion

• A terna is a list of three candidates for the office of bishop used in the episcopal selection process of the Roman Catholic Church

People

• Fredrick Terna (1923-2022), Austrian-born American artist

Companies

• Terna - Rete Elettrica Nazionale, the Italian electricity transmission operator
• GEK Terna, a Greek construction industry conglomerate
• Terna Energy, electric utilities branch of the Greek conglomerate GEK Terna

Organisations

• Grupo Terna, a unit of the National Police of Peru

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