2026

, located in Vicente Lopez, are called La Banda Más Fiel (The most faithful band) according to scientific research of Argentinian supporters by the University of Torcuato Di Tella. Most of the club's fans live in the Northern Zone of Greater Buenos Aires and CABA itself. Platense Supporter Day has been officially celebrated since 2005 every October 8. Club nicknames are Tense and Marrón (The Browns) due to the predominant color of his shirt. Although the most used nickname is El Calamar (The Squid) — since a journalist in the amateur era of Argentine soccer called them that because the club showed great games on stormy days and heavy rains. He said that the players played like squids in their ink and that's where the nickname came from.

La Hinchada de Velez Sarsfield is called "The Liniers Gang" since the club is located in the Liniers neighborhood. They are also nicknamed "Fortineros" since their stadium is called "El Fortin". It had approximately 56,000 socios (members) for Feb 2023. It's one of the 8 Argentine teams that have a Copa Libertadores and it's the 6th club in the country by the number of supporters. It has clásico with Club Atlético Ferrocarril del Oeste, although this rivalry lost popularity since this club has been in the 2nd division for more than 10 years.

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