Pedro Gastón Álvarez Sosa (born 24 March 2000) is a Uruguayan professional footballer who plays as a centre-back or left-back for Saudi Pro League club Al Qadsiah.

[1] Álvarez made his professional debut on 31 March 2019, playing the whole 90 minutes in a 4–2 league defeat against Racing Montevideo.

[2][3] He scored his first professional goal on 11 May 2019, netting the equalizer in a 1–1 draw against River Plate Montevideo.

[5] On 28 January of the following year, he moved abroad and joined Spanish La Liga side Getafe CF on loan until June 2023.

[6] On 19 August 2024, Álvarez move to Saudi Pro League side Al-Qadsiah in a 4-year package worth €12 million.