, 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.

Tige's fans are called "La Barra del Matador" because Club Atlético San Lorenzo was nicknamed that way and since Tigre had a very similar shirt they began to use the same nickname, "Matador". Their clásico is not perfectly defined but it is both with Club Atlético Platense, as well as with Club Atlético Chacarita.

Tigre 0:0 Platense