Estadio San Carlos de Apoquindo, Football stadium in Las Condes, Santiago, Chile.

Estadio San Carlos de Apoquindo, known for sponsorship as Claro Arena, is a football ground in Las Condes, Santiago, at almost 1,000 metres above sea level. Its pitch is surrounded by tiered stands with predominantly light-blue seats and a yellow section on the right, where two tall floodlight towers rise. A low white wall runs along the base of the seating, and a white goal frame stands at the far left end.

The stadium opened on September 4, 1988, and represents the fourth permanent home venue in the football club's history. It marked an important step forward for the university's team following its previous grounds.

The complex is named after Carlos Casanueva, rector of the Pontificia Universidad Católica de Chile, not a patron saint. Since 1995 the stadium has hosted the Copa UC under-17 tournament, and from 1989 it has also been a concert venue; Roxette's live version of "It Must Have Been Love" was recorded here with 45,000 Chilean fans credited as backing vocals.

The stadium sits inside the San Carlos de Apoquindo Sports Complex in Las Condes, at almost 1,000 metres above sea level on the Andean foothills. Access is through the complex, and the ground is oriented with the main stands along the touchlines. The pitch is synthetic turf, installed during the 2022–2025 remodel, and the lighting was upgraded in the same works.

In the 1994 Copa Interamericana final, Universidad Católica beat Saprissa 3-1 at home and lost 3-1 away; a tiebreaking game ended 2-0 in extra time, giving Católica a 6-4 aggregate win. The stadium also hosted Chile's national team in five 2022 World Cup qualifiers.