Aso Rock is a large outcrop of granitic rock located on the outskirts of Abuja, the capital of Nigeria. The Aso Rock is a 400-metre (1,300 ft) prominent monolith with a peak height of 936-metre (3,071 ft) above sea level. It is one of the city's most noticeable features. The Nigerian Presidential Complex, Nigerian National Assembly, and Nigerian Supreme Court are located around it. Much of the city extends to the south of the rock. "Aso" means victorious in the native language of the Asokoro ("the people of victory") ethnic group.

Aso Rock was the site of the 2003 Aso Rock Declaration, issued by the Heads of Government of the Commonwealth of Nations during the CHOGM held in Abuja. It reaffirmed the Commonwealth's principles as detailed under the Harare Declaration but set the "promotion of democracy and development" as the organisation's priorities.