Lezo

Lezo is a municipality in the province of Gipuzkoa, in the Basque Country of northern Spain. It lies near the Basque coast, not far from San Sebastián, and it combines urban and rural areas representative of the Basque countryside. The municipality is part of the modern Basque Autonomous Community and preserves Basque cultural traditions and language use in daily life.

Blas de Lezo y Olavarrieta (1689–1741) was a Spanish admiral born in Pasajes de San Pedro, in the Basque Country. He is best known for commanding Spanish forces during the defense of Cartagena de Indias against a British fleet in 1741, a key action in the War of Jenkins' Ear. His leadership helped prevent the capture of the city and is celebrated in naval history.

The name Lezo also appears as a toponym and a surname, and can refer to either the Basque municipality or the admiral depending on context.