|Full name||Eneko Arieta-Araunabeña Piedra|
|Date of birth||21 August 1933|
|Place of birth||Durango, Spain|
|Date of death||27 December 2004(aged 71)|
|Place of death||Galdakao, Spain|
|Height||1.75 m (5 ft 9 in)|
|* Senior club appearances and goals counted for the domestic league only.
Born in Durango, Biscay, Arieta joined Athletic Bilbao in 1951, from neighbouring CD Getxo. Barred by the likes of Agustín Gaínza, Rafael Iriondo, José Luis Panizo, Venancio and Telmo Zarra, he appeared in only two La Liga games his first two seasons combined, but scored in his debut on 9 September 1951, a 4–2 home win against Sporting de Gijón.
After the arrival of new coach Ferdinand Daučík before the start of 1954–55, several veterans began being gradually replaced, and Arieta succeeded Zarra as team top scorer, netting 20 times in 28 matches during the campaign and also winning the Copa del Generalísimo against Sevilla FC. He added 15 successful strikes the following season, helping his team conquer the sixth national championship of their history.
On 29 June 1958, Arieta opened the scoring in the Spanish Cup final, helping defeat hosts Real Madrid 2–0 and winning the second of his third trophies in the tournament. He retired in 1966 at the age of 32, having collected overall totals of 302 appearances and 170 goals, and died in Galdakao at 71 due to illness.
Arieta gained three caps for Spain, all in 1955 friendlies. His debut came on 17 March in a 1–2 defeat to France in Madrid, and he found the net in the following two appearances, in Switzerland (3–0) and against England (1–4 loss at Wembley Stadium).
- "Leyendas del Athletic Club de Bilbao – 'Arieta I'" [Athletic Club de Bilbao legends – 'Arieta I']. El Correo (in Spanish). Retrieved 23 May 2016.
- "At. Bilbao, 1 – Sevilla, 0". Mundo Deportivo (in Spanish). 6 June 1955. Retrieved 15 February 2016.
- "Falleció Eneko Arieta" [Eneko Arieta died]. Diario AS (in Spanish). 29 December 2004. Retrieved 8 February 2016.