Txabi Etxebarrieta (14 October 1944 – 7 June 1968), also known as Xabier Etxebarrieta Ortiz was a Basque nationalist and anti-fascist who was a popular leader of the armed separatist organisation Euskadi ta Askatasuna (ETA).
Etxebarrieta was also the first member of ETA killed in action.
He was killed after a confrontation with the Guardia Civil in Tolosa.On 2 June 2018 he was commemorated in Tolosa by 300 people.He was the uncle of Natxo Etxebarrieta, singer of the punk rock band named Cicatriz; and Aitziber Ibaibarriaga Etxebarrieta, politician of Bildu.