Brett Blanton is an American professional engineer who served as Architect of the Capitol (AOC) from January 2020 until February 13, 2023, overseeing the office of the architect, which manages the United States Capitol Complex in Washington, D.C., and its more than 2,400 employees.

[4] President Donald Trump nominated Blanton on December 9, 2019, for a ten-year term as Architect of the Capitol.

Blanton significantly transformed the management of AOC by implementing Enterprise Asset Management to utilize objective data-driven prioritization of projects in the legislative budgeting process, established the first building codes and certifying official in the Legislative and Judicial Branches, established AOC University to provide training for staff, and oversaw implementation a robust human capital strategy.

In November 2022, a report from the office of the Inspector General alleged that Blanton's underage daughter took his vehicle and drove recklessly at a Walmart in Tyson's Corner.

[9] On February 13, 2023, President Joe Biden rescinded Blanton's appointment as Architect of the Capitol.