Gangnam Finance Center, Office skyscraper in Gangnam District, South Korea.

Gangnam Finance Center is a 204-meter office tower at the corner of Teheran-ro and Nonhyeon-ro in Yeoksam-dong, with 45 floors above ground and 8 below. Its lower floors are clad in recessed square stone blocks, the middle and upper floors in modular glass curtain wall, and the sides expose ventilation grilles on every level. A plaza and a large courtyard sit at the rear.

The building was completed in 2001, during a period when the Gangnam area was rapidly developing into Seoul's main business corridor. The Teheran-ro boulevard around it grew into a concentration of large company headquarters through the late 1990s and early 2000s.

The tower's name changed from I-Tower to Star Tower in 2001, then to Gangnam Finance Center in 2007, when the underground GFC Mall arcade was renovated. The mall holds a lobby lounge, travel agency, convenience store, dentist and pharmacy. The building also appears in the 2014 drama My Love from the Star and the 2019 film The Dude in Me.

The tower is a short walk from Yeoksam subway station, making it easy to reach by public transit from most parts of Seoul. Since it is an active office building, visitors without a business appointment can generally only access the ground-floor lobby area.

The boulevard where the tower stands, Teheran-ro, got its name from a 1977 sister-city agreement between Seoul and Tehran, a connection that most passersby never notice. The name is right there on the street signs, linking one of Seoul's most corporate streets to a city on the other side of the world.