Javier "Javi" López Carballo (born 25 March 2002) is a Spanish professional footballer who plays as a left-back for La Liga club Real Sociedad.

[3] López made his senior debut with the reserves on 22 September 2018 at the age of just 16, by starting in a 0–0 Tercera División home draw against Real Sociedad C. In March of the following year, he further extended his contract until 2023, being definitely promoted to the main squad ahead of the 2020–21 campaign.

[4] On 21 June 2020, aged 18, López made his first team – and La Liga – debut, starting in a 0–6 away loss against RC Celta de Vigo.

López scored his first professional goal on 5 May 2024, netting the winner in a 1–0 away success over Valencia CF.

On 21 July 2024, López signed a six-year deal with Real Sociedad also in the top tier.