HHHR Tower, also known as the Blue Tower, is a supertall skyscraper on Sheikh Zayed Road, Dubai, United Arab Emirates.

Designed by architect Al Hashemi, the building is primarily residential, with some commercial uses.

[3] When completed in 2010, HHHR Tower was the second-tallest residential building in the world, surpassed only by Q1 in Australia, which stands 323 m (1,060 ft) tall.

[5] The building was built by a joint venture between Al Ahmadiah Contracting and Trading Co., from the UAE and Hip Hing Construction Co. Ltd. from Hong Kong.

[6] Another hallmark project by this team is the Masdar City in Abu Dhabi.