Prince Kuhio Federal Building, Federal building and courthouse in Honolulu, United States

The Prince Kūhiō Federal Building at 300 Ala Moana Boulevard consists of a ten-story office block, including a penthouse level, joined by an enclosed bridge to a six-story courthouse building with a basement. Architects Hawaii, the firm of Joseph G.F. Farrell, designed it, and it was completed in 1977 with 929,857 square feet of working space.

Completed in 1977, this structure replaced an earlier federal complex on the site of former Fort Armstrong. The original location had long served as the headquarters for customs and postal operations near Iolani Palace.

The building honors Prince Jonah Kuhio Kalanianaole, a Hawaiian leader who advocated for the islands in Congress. His name reflects a key moment in Hawaii's relationship with the mainland United States.

The complex stands at 300 Ala Moana Boulevard, across the boulevard from the Aloha Tower at Honolulu Harbor. Its ten-story office block links to the six-story courthouse by an enclosed bridge. Many floors hold federal courts and agency offices open only to staff and official visitors, so plan on viewing the exterior and public areas.

The federal government ignored local statutes limiting building heights between the shoreline and Punchbowl Crater, so the tower rises taller than the Hawaii State Capitol and blocks part of its view of the shore. The building was designed by Joseph G. F. Farrell's firm Architects Hawaii, which also designed Palau's capitol, opened in 2006.