Jon Guridi Aldalur (born 28 February 1995) is a Spanish professional footballer who plays for La Liga club Alavés.

On 11 July 2014 he was promoted to the reserve team in Segunda División B,[1] and made his senior debut on 13 September by starting in a 3–2 away loss against Sestao River.

[4] Guridi made his first team – and La Liga – debut on 18 March 2017, starting in a 1–0 away loss against local rivals Deportivo Alavés.

Guridi scored his first professional goal on 3 November 2019, netting his team's first in a 4–2 loss at Elche CF, and was a regular starter as Mirandés avoided relegation.

Upon returning from loan, Guridi was assigned to the main squad in the top tier, and scored his first goal in the category on 22 May 2022, netting his team's only in a 2–1 home loss against Atlético Madrid.