Nickname(s):El Tatengue(The Tatengue),Rojiblancos (The Red and Whites)
Founded:1907
Stadium:Estadio 15 de Abril
Capacity:29,000
1907-1995
1995-2005
2005-Present
Unión de Santa Fe Crest History
The crest history of Unión de Santa Fe is remarkably consistent, built almost entirely around the club’s traditional red-and-white vertical stripes, shield shape and CAU initials. Unlike many Argentine clubs that repeatedly experimented with completely different symbols, Unión has retained the same basic identity for well over a century.
The earliest crest shown, used from 1907 to 1995, already contained virtually all the elements that continue to define the club today. The badge took the form of a traditional pointed shield filled with alternating red and white vertical stripes. At the centre, the letters C, A and U, representing Club Atlético Unión, were arranged vertically and intertwined in a stylised monogram. The design was simple and closely connected to the colours worn by Unión since its earliest years.
A significant modernisation arrived in 1995. The 1995–2005 crest retained the striped shield but gave it a much more structured and polished appearance. The outline became thicker and more symmetrical, while an additional blue border was introduced around the red-and-white shield. The initials were also redesigned: rather than forming an intertwined central monogram, the blue letters C, A and U were placed diagonally across the stripes. Although visually more elaborate, the badge remained immediately recognisable as Unión.
In 2005, the club simplified its identity again. The blue elements were removed completely, returning the crest exclusively to Unión's traditional red and white colours. The shield was given a cleaner, sharper outline, while the vertical stripes became more regular and balanced.
The 2005–Present crest also retained the diagonal arrangement of the CAU initials, but changed them from blue to white. Their positioning across the red stripes gives the lettering strong visibility while maintaining the simplicity of the overall design.
Unión de Santa Fe Club History
Club Atlético Unión, commonly known as Unión de Santa Fe, was founded on 15 April 1907 in the city of Santa Fe. The club was established by a group of young men who had separated from Santa Fe Football Club and wanted to create an independent sporting institution. The name Unión reflected the idea of bringing the founders together under a new organisation. Its distinctive red-and-white colours quickly became central to the club's identity.
During its early decades, Unión developed into one of the most important football institutions in Santa Fe. The club competed in regional competitions organised by the Liga Santafesina de Fútbol, building a strong local following and establishing a rivalry with Colón de Santa Fe. Their meetings became known as the Clásico Santafesino, which remains one of Argentina's most passionate regional derbies.
An important milestone came with the construction of the club's own stadium. The Estadio 15 de Abril, named after Unión's foundation date, was inaugurated in 1929 and became the permanent home of El Tatengue. Located close to the centre of Santa Fe, the stadium became an important symbol of the club and its close relationship with the city.
Unión entered Argentina's national football structure and gradually established itself as a club capable of competing at the highest level. One of the defining moments in its history came in 1966, when Unión won promotion to the Primera División for the first time. Although the club initially struggled to maintain a permanent place in the top flight, the achievement marked its arrival on the national stage.
The club enjoyed one of its strongest periods during the 1970s. After returning to the Primera División, Unión assembled competitive teams that challenged some of Argentina's traditional powers. The high point came in the 1979 Nacional championship, when Unión reached the final against River Plate. The two-legged final finished level on aggregate, but River were crowned champions under the competition's away-goals regulations. Despite missing the title, finishing as national runners-up remains one of Unión's greatest achievements.
The following decades brought alternating periods in the Primera División and Primera B Nacional. Unión developed a reputation for rebuilding competitive sides and producing talented players despite operating with fewer resources than Argentina's largest clubs. Promotion and relegation became recurring parts of its history, but its large and loyal support ensured that the club remained one of the most significant institutions outside Buenos Aires.
Another important promotion came in 2011, when Unión returned to the Primera División after eight seasons outside the top flight. Relegation followed in 2013, but the club responded quickly and earned promotion again in 2014. This return began a more stable period at the highest level.
During the late 2010s, Unión achieved another historic milestone by qualifying for CONMEBOL competition for the first time. A strong domestic campaign earned the club a place in the 2019 Copa Sudamericana, taking El Tatengue into international competition more than a century after its foundation. Unión subsequently returned to the Copa Sudamericana, strengthening its position as a competitive force in Argentine football.
Throughout its history, Unión's identity has been inseparable from Santa Fe and its rivalry with Colón. The Clásico Santafesino divides the city between the red-and-white Unión supporters and the red-and-black followers of Colón, and victories in the derby often carry significance far beyond league position.
