9/11 Memorial in Arizona, State memorial at Wesley Bolin Memorial Plaza, Phoenix, United States

The 9/11 Memorial in Arizona is a circular steel ring installed at Wesley Bolin Memorial Plaza in Phoenix, with words and phrases cut directly through the metal. When sunlight passes through those cutouts, the text appears as shadows on the concrete base below the ring.

The memorial opened on 11 September 2006, five years after the attacks, on public land at Wesley Bolin Memorial Plaza. It was sponsored by the city of Phoenix, the Phoenix firefighters' union and Bank of America, among other institutions, and no public funds were used to build or promote it. The design team member Eddie Jones said the attacks gave America a sense of what the rest of the world feels.

Statements cut through the ring mix a timeline of the attacks and their aftermath with personal stories of rescuers and with opinions, among them "Erroneous U.S. Airstrike Kills 46 Uruzgan Civilians" and "You Don't Win Battles of Terrorism With More Battles". The mix drew objections from Representative Russell Pearce and candidate Len Munsil, and the legislature later voted to remove eleven inscriptions; Governor Jan Brewer vetoed that bill, and the commission ultimately removed two statements and added George W. Bush's name.

The memorial sits on Wesley Bolin Memorial Plaza near the Arizona State Capitol, which makes it easy to reach on foot from the center of Phoenix. The shadow effect works best on sunny days, which are common in this part of Arizona throughout the year.

The memorial's circular plan was chosen to represent the unity felt by Americans after the attacks. Critics who alleged a crescent shape and a pro-Islam bias overlooked that the form is a complete circle, with no star anywhere in the design.