Capital Fort (Bulgarian: Капитал Форт) Business Center is a Class A office building in Sofia.

The height is 126 m, and was the tallest building in Bulgaria before the construction of Sky Fort with its 202 m. It has 28 floors and a surface area of 80,000 square metres (860,000 sq ft).

The concept design of Capital Fort is done by WKK[citation needed] whilst working at Atkins.

Atkins is the architecture company behind Burj Al Arab in Dubai and as a result Capital Fort shares most of the external looks with its distinctive predecessor (itself completed in 1999).

Superior equipment and installations include 12 high-speed lifts in the high body, advanced HVAC technology and a building management system, covering climate control, security, fire protection and safety.