Gerard Denis Reilly (September 27, 1906 – May 18, 1995) was an official at the United States Department of Labor and the chief judge of the District of Columbia Court of Appeals.

Born in Boston, Massachusetts, Reilly received his bachelor's and law degrees at Harvard University, where he was a cross country runner.

[7] During his time as solicitor, a resolution of impeachment was filed against him and Secretary of Labor Frances Perkins by Republican Representative J. Parnell Thomas, who accused them of refusing to deport labor leader Harry Bridges.

In 1947, Reilly served as counsel to the Senate Committee on Labor and Public Welfare and helped draft the Taft-Hartley Act.

His law clerks included future federal judge Ann D. Montgomery.